Pop Top Arm Repair - Revision history

TubaNeil at 18:24, 26 August 2010

2010-08-26T18:24:04Z

TubaNeil at 18:22, 26 August 2010

2010-08-26T18:22:45Z

TubaNeil at 18:10, 26 August 2010

2010-08-26T18:10:20Z

TubaNeil at 18:02, 26 August 2010

2010-08-26T18:02:35Z

TubaNeil at 17:59, 26 August 2010

2010-08-26T17:59:17Z

TubaNeil at 17:36, 26 August 2010

2010-08-26T17:36:01Z

TubaNeil at 17:34, 26 August 2010

2010-08-26T17:34:18Z

TubaNeil at 17:33, 26 August 2010

2010-08-26T17:33:06Z

TubaNeil at 17:29, 26 August 2010

2010-08-26T17:29:28Z

TubaNeil at 17:29, 26 August 2010

2010-08-26T17:29:11Z

@@ Line 23: / Line 23: @@
 ===== - To take apart in situ, then remove.  =====
-'''Before removing fasteners. '''On one side, remove push nut on stop pin at top of lower arm. Allow arms to fold slightly toward rear. (this tensions spring slightly). Hold push bar steady, remove [http://www.vanagonwiki.net/wiki/File:PopTopStrutStopPin.jpg stop pin at top of lower arm]. Release tension allowing push bar to move forward.&nbsp;'''Caution: with stop pin removed, elbow of arms can now travel further forward. '''Remove lower pivot pin, rotate arm slightly to rear and up, place tape at end of arm (to keep spring in) rotate lower arm up, remove "Z" end of cable from hole. (Taking things apart this far can allow installation of new cable)&nbsp;Remove cross bolt on push bar, tap arms off end of push bar. <br>
+'''Before removing fasteners. '''On one side, remove push nut on [http://www.vanagonwiki.net/wiki/File:PopTopStrutStopPin.jpg stop pin at top of lower arm]. Allow arms to fold slightly toward rear. (this tensions spring slightly). Hold push bar steady, remove stop pin at top of lower arm. Release tension allowing push bar to move forward.&nbsp;'''Caution: with stop pin removed, elbow of arms can now travel further forward. '''Remove lower pivot pin, rotate arm slightly to rear and up, place tape at end of arm (to keep spring in) rotate lower arm up, remove "Z" end of cable from hole. (Taking things apart this far can allow installation of new cable)&nbsp;Remove cross bolt on push bar, tap arms off end of push bar. <br>
 If assembly removed as unit, when on bench, disassemble and check cable(s) for excessive wear. Inspect ends of push bar and hole in big end of upper arm for wear. Repair methods will vary, in part, depending on amount of wear at push bar ends. Regardless of method, installation of a bushing on upper arm is needed&nbsp;to provide a larger bearing surface. Align bushing properly.&nbsp;

@@ Line 23: / Line 23: @@
 ===== - To take apart in situ, then remove.  =====
-'''Before removing fasteners. '''On one'''&nbsp;'''side, if possible, allow arms to fold slightly toward rear. (this tensions spring slightly). Hold push bar steady, remove stop pin at top of lower arm. Release tension by allowing push bar to move forward.&nbsp;'''Caution: with stop pin removed, elbow of arms can now travel further forward. '''Remove lower pivot pin, rotate arm slightly to rear and up, place tape at end of arm (to keep spring in) rotate lower arm up, remove "Z" end of cable from hole. Remove cross bolt on push bar, tap arms off end of push bar.<br>
+'''Before removing fasteners. '''On one side, remove push nut on stop pin at top of lower arm. Allow arms to fold slightly toward rear. (this tensions spring slightly). Hold push bar steady, remove [http://www.vanagonwiki.net/wiki/File:PopTopStrutStopPin.jpg stop pin at top of lower arm]. Release tension allowing push bar to move forward.&nbsp;'''Caution: with stop pin removed, elbow of arms can now travel further forward. '''Remove lower pivot pin, rotate arm slightly to rear and up, place tape at end of arm (to keep spring in) rotate lower arm up, remove "Z" end of cable from hole. (Taking things apart this far can allow installation of new cable)&nbsp;Remove cross bolt on push bar, tap arms off end of push bar. <br>
-With assembly on bench, disassemble as per steps above. Check cable(s) for excessive wear. Inspect ends of push bar and hole in big end of upper arm for wear. Repair methods will vary, in part, depending on amount of wear at push bar ends. Regardless of method, installation of a bushing on upper arm is needed&nbsp;to provide a larger bearing surface. Align bushing properly.&nbsp;
+If assembly removed as unit, when on bench, disassemble and check cable(s) for excessive wear. Inspect ends of push bar and hole in big end of upper arm for wear. Repair methods will vary, in part, depending on amount of wear at push bar ends. Regardless of method, installation of a bushing on upper arm is needed&nbsp;to provide a larger bearing surface. Align bushing properly.&nbsp;
 Authors pics/text of repair:&nbsp;[http://picasaweb.google.com/musomuso/PopTopStrutCableAndSpringEtc#5501604219504466738 picasaweb.google.com/musomuso/PopTopStrutCableAndSpringEtc#5501604219504466738]<br>David Beierl's pics/text of repair:&nbsp;[http://picasaweb.google.com/dbeierl/VanagonPopTopHingeTroubles# picasaweb.google.com/dbeierl/VanagonPopTopHingeTroubles#]<br>

@@ Line 23: / Line 23: @@
 ===== - To take apart in situ, then remove.  =====
-'''Before removing fasteners. '''On one'''&nbsp;'''side, if possible, allow arms to fold slightly toward rear. (this tensions spring slightly). Hold push bar steady, remove stop pin at top of lower arm. Release tension by allowing push bar to move forward.&nbsp;'''Caution: with stop pin removed, arms can now travel further forward. '''Remove "Z" end of cable from hole. Remove fasteners. Remove nylon lock nut + bolt on push bar, tap arms off end of push bar.<br>
+'''Before removing fasteners. '''On one'''&nbsp;'''side, if possible, allow arms to fold slightly toward rear. (this tensions spring slightly). Hold push bar steady, remove stop pin at top of lower arm. Release tension by allowing push bar to move forward.&nbsp;'''Caution: with stop pin removed, elbow of arms can now travel further forward. '''Remove lower pivot pin, rotate arm slightly to rear and up, place tape at end of arm (to keep spring in) rotate lower arm up, remove "Z" end of cable from hole. Remove cross bolt on push bar, tap arms off end of push bar.<br>
-With assembly on bench, disassemble as per steps above. Check cable(s) for excessive wear. Inspect ends of push bar and hole in big end of upper arm for wear. Repair methods will vary, in part, depending on amount of wear at push bar ends. Regardless of method, installation of a bushing is needed&nbsp;to provide a larger bearing surface. Align bushing properly.&nbsp;
+With assembly on bench, disassemble as per steps above. Check cable(s) for excessive wear. Inspect ends of push bar and hole in big end of upper arm for wear. Repair methods will vary, in part, depending on amount of wear at push bar ends. Regardless of method, installation of a bushing on upper arm is needed&nbsp;to provide a larger bearing surface. Align bushing properly.&nbsp;
 Authors pics/text of repair:&nbsp;[http://picasaweb.google.com/musomuso/PopTopStrutCableAndSpringEtc#5501604219504466738 picasaweb.google.com/musomuso/PopTopStrutCableAndSpringEtc#5501604219504466738]<br>David Beierl's pics/text of repair:&nbsp;[http://picasaweb.google.com/dbeierl/VanagonPopTopHingeTroubles# picasaweb.google.com/dbeierl/VanagonPopTopHingeTroubles#]<br>
 ===== - <u></u>Installation of assembly: method 1.  =====

@@ Line 5: / Line 5: @@
 ===== - Lift Assist Parts Description And Function.  =====
-Each pop top lower arm contains a [http://www.vanagonwiki.net/wiki/File:PopTopCablesmall.jpg cable] and [http://www.vanagonwiki.net/wiki/File:PopTopSpring.jpg spring] to provide lift assistance. A recent viewing of ETKA by the author, showed only one set of assist parts but assist parts were likely installed in each lower arm at time of manufacture. Each cable has a bolt shaped part on one end and "Z" termination on the other. The "bolt" seats at bottom of spring, cable passes through spring, exits lower arm, follows the curve with the [http://www.vanagonwiki.net/wiki/File:PopTopCableDetails.jpg "Z" securing to a hole]. As top is lowered, the "bolt" end of cables pull on the springs. As the springs compress the tops' weight is effectively reduced. As top is raised, the springs expand pull on the cables, thus helping the user raise the top. A failed cable(s) may not be detected by the owner. They may not know of these parts and/or have grown accustomed to the weight. The pop top is typically closed most of the time leaving the cables and springs under tension. These cables don't last forever. In time, they will fail.&nbsp;'''If a cable fails while top is lifted or lowered, the weight of the top suddenly increases.'''
+Each pop top lower arm contains a [http://www.vanagonwiki.net/wiki/File:PopTopCablesmall.jpg cable] and [http://www.vanagonwiki.net/wiki/File:PopTopSpring.jpg spring] to provide lift assistance. A recent viewing of ETKA by the author, showed only one set of assist parts but assist parts were likely installed in each lower arm at time of manufacture. Each cable has a bolt shaped part on one end and "Z" termination on the other. The "bolt" seats at bottom of spring, cable passes through spring, exits lower arm, follows the curve with the [http://www.vanagonwiki.net/wiki/File:PopTopCableDetails.jpg "Z" securing to a hole]. As top is lowered, the "bolt" end of cables pull on the springs. As the springs compress the tops' weight is effectively reduced. As top is raised, the springs expand pull on the cables, thus helping the user raise the top. A existing failed cable may not be detected by the owner. They may not know of these parts and/or have grown accustomed to the weight. The pop top is typically closed most of the time leaving the cables and springs under tension. These cables don't last forever. In time, they will fail.&nbsp;'''If a cable fails while top is being lowered, the weight of the top suddenly increases.'''
 ===== - Strut Assembly Removal: method 1.  =====

@@ Line 1: / Line 1: @@
 If you choose to use this information, or information linked to this page, please understand that you do so at your own risk. Consult your Vanagon Bentley. Information here is based mostly on a 1981 Westfalia, but the wear points and lift assist construction are very likely the same for later model years.
-The ends of the pop top push bar are prone to excessive wear. Each end is housed in a pivot point between the upper and lower arms. Over time, under normal use, a&nbsp;narrow portion on each upper arm eventually cuts into the push bar posing the risk of it cutting through completely. General opinion seems to be that these parts should be inspected and repaired sooner than later.<br>
+The ends of the pop top push bar are prone to excessive wear. Each push bar end pivots at ends of upper and lower arms. Over time, under normal use, [http://www.vanagonwiki.net/wiki/File:UpperArmAtPushBar.jpg a&nbsp;narrow portion on each upper arm (narrow portion in pic repaired)] eventually [http://www.vanagonwiki.net/wiki/File:PushBarGroove.jpg cuts into the push bar] posing the risk of it cutting through completely. General opinion seems to be that these parts should be inspected and repaired sooner than later.<br>
 ===== - Lift Assist Parts Description And Function.  =====
 Each pop top lower arm contains a [http://www.vanagonwiki.net/wiki/File:PopTopCablesmall.jpg cable] and [http://www.vanagonwiki.net/wiki/File:PopTopSpring.jpg spring] to provide lift assistance. A recent viewing of ETKA by the author, showed only one set of assist parts but assist parts were likely installed in each lower arm at time of manufacture. Each cable has a bolt shaped part on one end and "Z" termination on the other. The "bolt" seats at bottom of spring, cable passes through spring, exits lower arm, follows the curve with the [http://www.vanagonwiki.net/wiki/File:PopTopCableDetails.jpg "Z" securing to a hole]. As top is lowered, the "bolt" end of cables pull on the springs. As the springs compress the tops' weight is effectively reduced. As top is raised, the springs expand pull on the cables, thus helping the user raise the top. A failed cable(s) may not be detected by the owner. They may not know of these parts and/or have grown accustomed to the weight. The pop top is typically closed most of the time leaving the cables and springs under tension. These cables don't last forever. In time, they will fail.&nbsp;'''If a cable fails while top is lifted or lowered, the weight of the top suddenly increases.'''
 ===== - Strut Assembly Removal: method 1.  =====
 With the top down, bind the upper and lower arms together by passing a suitably sized wire or rope through upper hinge then around lower and upper arms. '''This wire or rope needs to securely bind the arms together.''' Failure to do so could result in arms suddenly flinging apart with considerable force. Particularly when assembly is out of vehicle. If more work room is needed, the top can be resting but not latched. Consult Bentley for fastener removal. Remove fasteners at upper and lower bracket hinges, raise and safely support top high enough to provide L/R movement for strut arm assembly removal, remove assembly.<br>
 ===== - Strut assembly removal: method 2.&nbsp;  =====
@@ Line 19: / Line 19: @@
 ===== - To remove as one piece.  =====
 Raise top completely. '''The top is heavy'''. Support securely with temporary support. The springs are now almost totally UN-compressed, so tension is almost gone. Stop pins at top of lower arms prohibit further movement. Remove fasteners and/or hinges. **&nbsp;''If possible, remove lower pins first, then upper pins. Removing arms with upper hinges attached might require the use of a ladder to get at carriage bolt heads. Be aware that installation of upper pins may be difficult due to limited room for push nut installation. It may be possible to install push nut on inward facing side of upper arm.''** Remove strut assembly.
 ===== - To take apart in situ, then remove.  =====
@@ Line 27: / Line 27: @@
 With assembly on bench, disassemble as per steps above. Check cable(s) for excessive wear. Inspect ends of push bar and hole in big end of upper arm for wear. Repair methods will vary, in part, depending on amount of wear at push bar ends. Regardless of method, installation of a bushing is needed&nbsp;to provide a larger bearing surface. Align bushing properly.&nbsp;
 Authors pics/text of repair:&nbsp;[http://picasaweb.google.com/musomuso/PopTopStrutCableAndSpringEtc#5501604219504466738 picasaweb.google.com/musomuso/PopTopStrutCableAndSpringEtc#5501604219504466738]<br>David Beierl's pics/text of repair:&nbsp;[http://picasaweb.google.com/dbeierl/VanagonPopTopHingeTroubles# picasaweb.google.com/dbeierl/VanagonPopTopHingeTroubles#]<br>
 ===== - <u></u>Installation of assembly: method 1.  =====
 Pop top safely raised and supported high enough to provide L/R movement of strut assembly, position strut assembly, install lower fasteners, compress upper arm down, remove wire or rope, align upper hinge (lowering top further may help). Install Phillips screws most of the way in, caulk the carriage bolt heads and top where they mate, install bolts mostly tight, final tighten screws, then bolts.<br>
 ===== -Installation of assembly: method 2.  =====

← Older revision		Revision as of 17:36, 26 August 2010
Line 45:		Line 45:
	<br>		<br>

−	[http://www.vanagonwiki.net/wiki/File:File-PopTopCable.jpg This cable] has been installed on both sides. [[gerry.vanagon.com/cgi-bin/wa.exe\|Notes on manufacturing and installation]].<br>	+	[http://www.vanagonwiki.net/wiki/File:File-PopTopCable.jpg This cable] has been installed on both sides. [http://gerry.vanagon.com/cgi-bin/wa.exe?A2=ind1008D&L=vanagon&P=R9109 Notes on manufacturing and installation.]<br>

← Older revision		Revision as of 17:34, 26 August 2010
Line 45:		Line 45:
	<br>		<br>

−	~~This cable:  ~~[http://www.vanagonwiki.net/wiki/File:File-PopTopCable.jpg ~~www.vanagonwiki.net/wiki/File:File-PopTopCable.jpg~~]~~  ~~has been installed on both sides. ~~Notes on manufacturing and installation here:~~	+	[http://www.vanagonwiki.net/wiki/File:File-PopTopCable.jpg This cable] has been installed on both sides. [[gerry.vanagon.com/cgi-bin/wa.exe\|Notes on manufacturing and installation]].<br>
−
−	[~~http://~~gerry.vanagon.com/cgi-bin/wa.exe~~?A2=ind1008D&L=vanagon&P=R9109 gerry.vanagon~~.~~com/cgi-bin/wa.exe]~~

@@ Line 41: / Line 41: @@
 ===== - Possible issues and tips.  =====
-Preplan for a safe way to slowly release the arms once strut assembly is removed. They are under a fair amount of tension. Needle nose vice grips carefully applied to carriage bolt heads can assist removal. Clean top and bolt heads where they meet, caulk bolts, install. Open driver side slider window to ease removal of carriage bolts. Pivot pin push nuts may get deformed during removal. If worn or damaged, SAE push nuts can be purchased from a good generic auto parts store. Use locking type nuts on push bar bolts. If using method 2, lowering the top down may make strut assembly installation easier. (reverse of method 1) If so, pre plan for some way to safely lower the top. Be aware that you have to bring the arms back together and tie up if installing as per first removal method. If a cable is broken, a possible solution:&nbsp;[http://lh6.ggpht.com/_01e3MpPuKwI/TGXQ2zr9kPI/AAAAAAAADfs/hrsimwPa45k/s912/Pop%20Top%20Assist%20Cable%20Mockup.jpg lh6.ggpht.com/_01e3MpPuKwI/TGXQ2zr9kPI/AAAAAAAADfs/hrsimwPa45k/s912/Pop%20Top%20Assist%20Cable%20Mockup.jpg]<br>
+Preplan for a safe way to slowly release the arms once strut assembly is removed. They are under a fair amount of tension. Needle nose vice grips carefully applied to carriage bolt heads can assist removal. Clean top and bolt heads where they meet, caulk bolts, install. Open driver side slider window to ease removal of carriage bolts. Pivot pin push nuts may get deformed during removal. If worn or damaged, SAE push nuts can be purchased from a good generic auto parts store. Use locking type nuts on push bar bolts. If using method 2, lowering the top down may make strut assembly installation easier. (reverse of method 1) If so, pre plan for some way to safely lower the top. Be aware that you have to bring the arms back together and tie up if installing as per first removal method. If a cable is broken, [http://www.vanagonwiki.net/wiki/File:Pop_Top_Assist_Cable_Mockup.jpg a possible solution].<br>
 <br>

@@ Line 39: / Line 39: @@
 Arms could be left unfolded and installed with top still fully raised. If not.... Fold arms and bind together as per removal method 1. Lower pop top leaving enough room so assembly can be put into position. Support top properly. Follow remaining steps in installation method 1.
-===== - <u>Possible issues and tips</u>.  =====
+===== - Possible issues and tips.  =====
 Preplan for a safe way to slowly release the arms once strut assembly is removed. They are under a fair amount of tension. Needle nose vice grips carefully applied to carriage bolt heads can assist removal. Clean top and bolt heads where they meet, caulk bolts, install. Open driver side slider window to ease removal of carriage bolts. Pivot pin push nuts may get deformed during removal. If worn or damaged, SAE push nuts can be purchased from a good generic auto parts store. Use locking type nuts on push bar bolts. If using method 2, lowering the top down may make strut assembly installation easier. (reverse of method 1) If so, pre plan for some way to safely lower the top. Be aware that you have to bring the arms back together and tie up if installing as per first removal method. If a cable is broken, a possible solution:&nbsp;[http://lh6.ggpht.com/_01e3MpPuKwI/TGXQ2zr9kPI/AAAAAAAADfs/hrsimwPa45k/s912/Pop%20Top%20Assist%20Cable%20Mockup.jpg lh6.ggpht.com/_01e3MpPuKwI/TGXQ2zr9kPI/AAAAAAAADfs/hrsimwPa45k/s912/Pop%20Top%20Assist%20Cable%20Mockup.jpg]<br>
 This cable: &nbsp;[http://www.vanagonwiki.net/wiki/File:File-PopTopCable.jpg www.vanagonwiki.net/wiki/File:File-PopTopCable.jpg]&nbsp;&nbsp;has been installed on both sides. Notes on manufacturing and installation here:
 [http://gerry.vanagon.com/cgi-bin/wa.exe?A2=ind1008D&L=vanagon&P=R9109 gerry.vanagon.com/cgi-bin/wa.exe]