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 DubbyDo
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| posted on June 2nd, 2013 at 06:57 PM |
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Main bearing mount surface
Heres a couple of pics of the main cap mounts in the case. Do they look ok to go again? sorry about pic quality, can take more if needed. Cheers.
Matt, Aircooled have the Bugpack Pro St and 044, only have Los Panchitos in 90.5 and bigger, although they do have PN:500-240
DP STD Bore 40X35.5 for a decent price, wonder if these would be ok?
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bajachris88
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| posted on June 2nd, 2013 at 07:02 PM |
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Feel any ridges and bumps when you run your finger nail across the bearing seat surface?
(ô_!_/ô) (ô_!_/ô)
69' baja: kombi box, thing spindles, irs, disc front, type 3 rear drums, 2 inch lift kit, 31x10 rears. 
New engine in process: 94mm p&bs, 74mm C/w chomol Crank, 35.5x39 SP heads, turbo. Wierd combo, hopeful torque monsta! |
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DubbyDo
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| posted on June 2nd, 2013 at 08:55 PM |
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Nah, feels better than dragging your nails across a blackboard......
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 matberry
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| posted on June 2nd, 2013 at 10:00 PM |
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Hard to be sure with the small pics but looks pretty good. Those heads, the 500-420 look ok, they do the Los-Panchito too and mention they are good
for 1600 as I was mentioning. The step in your old heads should be machined to be equalised (made the same) then use copper head gaskets if required
to get a safe deck height depending on chamber volume to get required compression ratio.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
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DubbyDo
A.k.a.: Dave
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| posted on June 2nd, 2013 at 10:47 PM |
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PM sent
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vlad01
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| posted on June 14th, 2013 at 06:29 PM |
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the bearing have been shuffling.
71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE |
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HappyDaze
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| posted on June 14th, 2013 at 07:17 PM |
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The chap who align-bored my 356 case finished the mains with a hone. When I asked why, he told me the fine finish is preferable for heat dissipation,
and also the final hone finish is very accurate.
I'd rather wear a Beetle out by racing it than by polishing it!
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vlad01
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| posted on June 17th, 2013 at 03:56 PM |
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| Quote: | Originally
posted by HappyDaze
The chap who align-bored my 356 case finished the mains with a hone. When I asked why, he told me the fine finish is preferable for heat dissipation,
and also the final hone finish is very accurate.
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correct, coz at microscopic level the surface area is much larger for transferring heat better also the crosshatching give a better bite to the
bearing shell.
This is a more common practice on cast iron or steel saddles and main caps, rod ends though, never see it on alloy myself.
71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE |
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DubbyDo
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| posted on June 17th, 2013 at 04:11 PM |
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| Quote: | Originally
posted by vlad01
the bearing have been shuffling.
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Front to rear? Should be ok if I get good clearances with the new bearings and the correct shims for the flywheel?
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vlad01
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| posted on June 17th, 2013 at 08:09 PM |
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just vibrating around from the case not being rigid enough and unbalanced rotation mass, i think the correct term is fretting.
does your saddle matting surfaces have a funny pattern on them? like this?
71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE |
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DubbyDo
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| posted on June 18th, 2013 at 08:04 PM |
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| Quote: | Originally
posted by vlad01
just vibrating around from the case not being rigid enough and unbalanced rotation mass, i think the correct term is fretting.
does your saddle matting surfaces have a funny pattern on them? like this?
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Mating surfaces look pretty good, couple of scratches where I cleaned the sealant off but no funny patterns.
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DubbyDo
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| posted on June 18th, 2013 at 08:12 PM |
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Dont know whats going on with the pic sizing, when I send it to myself from my fone it is 1.6 Mb but when I open my email it is this tiny size
everytime....WTF
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vlad01
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| posted on June 18th, 2013 at 09:04 PM |
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photo bucket time! this forum is useless for uploading pics
71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE |
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matberry
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| posted on June 18th, 2013 at 09:10 PM |
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Yeah, better pic would help. The saddle mating face does look shiney. Are the any ridges ariund the stud hole...close up pic please....
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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DubbyDo
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| posted on June 18th, 2013 at 10:06 PM |
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Here goes:
[IMG][URL=http://s1287.photobucket.com/user/dubbydo2/media/IMG_9973_zps91884e5e.jpg.html][IMG]
[IMG][URL=http://s1287.photobucket.com/user/dubbydo2/media/IMG_9964_zps6545fe59.jpg.html][IMG]
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DubbyDo
A.k.a.: Dave
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| posted on June 18th, 2013 at 10:07 PM |
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Shit, that was no good. Will go and find the thread on how to do this
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DubbyDo
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| posted on June 18th, 2013 at 11:37 PM |
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See if this works
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DubbyDo
A.k.a.: Dave
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| posted on June 18th, 2013 at 11:38 PM |
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Yeeehaaaa, will bang some more up
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DubbyDo
A.k.a.: Dave
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| posted on June 18th, 2013 at 11:42 PM |
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Heres more
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DubbyDo
A.k.a.: Dave
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| posted on June 18th, 2013 at 11:43 PM |
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Last one
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matberry
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| posted on June 19th, 2013 at 08:38 AM |
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Looks good to me to run Dave, as long as no ridge to be felt at the centre main location where that oil groove is up the back of the bearing. The
other check is with the case torqued together, no gap is present at the cxentre main saddles, both with and without the bearings installed.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE
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