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rustfree1967bug
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Joined: November 16, 2006
Posts: 3446
Location: minnesota
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 Posted: Wed Apr 07, 2010 7:30 pm Post subject: Checking endplay from crank pulley end |
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I was doing some work on my car tonight and just thought I would pull on the crank pulley to see how much endplay I have and i'm pretty sure there is more than there should be. I could easily fell the movement by pulling/pushing on the pulley. I'm just wondering if theres any way to measure the endplay without pulling the engine?
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'70 ghia
'69 ghia
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'67 so-42
IDA's...well... they talk dirty -MURZI |
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Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 80160
Location: Sneaking up behind you
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| Posted: Wed Apr 07, 2010 7:32 pm Post subject: |
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If you have a dial indicator you can setup a jig and measure it.
The general rule is if you "see" it move, it's too much. Felling it click is OK but a clunk is bad.
Link
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
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rustfree1967bug
Samba Member
Joined: November 16, 2006
Posts: 3446
Location: minnesota
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| Posted: Wed Apr 07, 2010 7:40 pm Post subject: |
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I do have a dial indicator, i'll try to set something up so I can measure it on the crank pulley side. And I can for sure see the pulley move but it doesn't really clunk. I really hope I don't have to tear it down for a rebuild. Iv'e only put a 1000 miles on the car since I bought it.
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'70 ghia
'69 ghia
'65 singlecab
'66 sunroof beetle
'74 bus
'67 so-42
IDA's...well... they talk dirty -MURZI |
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rustfree1967bug
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Joined: November 16, 2006
Posts: 3446
Location: minnesota
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| Posted: Wed Apr 07, 2010 7:46 pm Post subject: |
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Also would checking the oil pressure tell me anything?
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'70 ghia
'69 ghia
'65 singlecab
'66 sunroof beetle
'74 bus
'67 so-42
IDA's...well... they talk dirty -MURZI |
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fastinradford
Samba Member
Joined: June 08, 2008
Posts: 2895
Location: Athens Ohio
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| Posted: Wed Apr 07, 2010 10:47 pm Post subject: |
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| rustfree1967bug wrote: |
| Also would checking the oil pressure tell me anything? |
depends,
I built a beater motor and used a 30mm oil pump and with about the same play as the motor in glenn's video I never had any running/pressure issues,
however, I never plan to use that sad, sad beat to hell case again anyway.
what it all comes down to is: will your motor serve your purpose, mine did, for a $150 "rebuild" it got me to and from work for over a year. and still ran fine when I removed it.
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95 jetta 5spd, (first waterpumper vw)
the nice 74 Ghia, (of course the fiance drives that one).
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rustfree1967bug
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Joined: November 16, 2006
Posts: 3446
Location: minnesota
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| Posted: Thu Apr 08, 2010 10:54 am Post subject: |
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Well I used a digital fraction caliper and measured between the case and the back side of the crank pulley. I got about 0.53 millimeters which I think would be about 20 thousands? If thats right just how bad is that? Would it be worth pulling the engine and reshimming or is it too late?
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'70 ghia
'69 ghia
'65 singlecab
'66 sunroof beetle
'74 bus
'67 so-42
IDA's...well... they talk dirty -MURZI |
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Duane
Samba Member
Joined: April 11, 2004
Posts: 345
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| Posted: Thu Apr 08, 2010 12:29 pm Post subject: |
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| rustfree1967bug wrote: |
| Well I used a digital fraction caliper and measured between the case and the back side of the crank pulley. I got about 0.53 millimeters which I think would be about 20 thousands? If thats right just how bad is that? Would it be worth pulling the engine and reshimming or is it too late? |
I wouldn't trust that means of measurement. Us a dial off the crank, you have to much room for error doing it the other way. Also, measure after thrusting both directions with no pressure applied, i.e. don't take your readings while you pulling the crankshaft or pushing, take freeload measurements.
I take crank measurements and backlashes all the time, cranks that require anywhere from .015mm to 1mm, backlashes roughly down to .015mm and can see the movement easily with my eyes, so I have to disagree with Glenn about if you can see it its usually bad. |
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Cusser
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Joined: October 02, 2006
Posts: 33381
Location: Hot Arizona
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| Posted: Thu Apr 08, 2010 12:37 pm Post subject: |
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Are you having any issues, like the front crank seal leaking? If no issues, I think I'd just drive it and not worry. If you know how to pull an engine already, and have a few hours free, and know how to get the flywheel off if different spacer washer is needed, then do it the right way.
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1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
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