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  View original topic: .06” end play
aquifer Fri Aug 08, 2025 12:00 pm

I saw a 1776 engine online. I was slightly interested but it said the end play was .06”. I asked if he meant.006”. He said no if you go that tight on a new bearing it will lock up.

I’d never heard that. Is that true? I’m eventually going to rebuild a 1600 dp for my 67 and am trying to learn all I can. Thanks in advance!

Glenn Fri Aug 08, 2025 12:03 pm

.003"-.005" is the factory spec.

Max Welton Fri Aug 08, 2025 12:05 pm

And .006 is the factory wear limit.

rcooled Fri Aug 08, 2025 12:20 pm

aquifer wrote: He said no if you go that tight on a new bearing it will lock up. Is that true?
Absolutely not!

And don't even consider buying anything from this guy either [-X

aquifer Fri Aug 08, 2025 12:47 pm

rcooled wrote: aquifer wrote: He said no if you go that tight on a new bearing it will lock up. Is that true?
Absolutely not!

And don't even consider buying anything from this guy either [-X

Supposedly it only has 3,000 miles on it and was fairly cheap, which is why I was initially interested. I thought the end play thing was a typo til he confirmed it.

Definitely not interested anymore! Thanks for the replies. I'm sure I'll have a ton of questions whenever I go down the road to rebuild my engine, but in the meantime I'm stocking up on information. :D

ashman40 Fri Aug 08, 2025 2:53 pm

aquifer wrote: I saw a 1776 engine online. I was slightly interested but it said the end play was .06”. I asked if he meant.006”. He said no if you go that tight on a new bearing it will lock up.
I found this page which lists common crank endplay ranges for popular engines:
https://www.enginelabs.com/engine-tech/blueprint-s...t-endplay/


You can see from the above table the largest value is 0.012" = 12-thousandths of an inch (12/1000). That's seller is suggesting 0.060" = 60-thousandths of an inch (60/1000) is acceptable end play for a relatively new engine. That is 5x the largest value on the table! :shock:


The VW spec for end play is on the low end but it is not the lowest. I found that the GM LS IV engine has a recommended crank end play of 0.0015"- 0.0078" On the tight end that is 15-ten-thousandths (15/10,000) of an inch!!!

scrivyscriv Sun Aug 10, 2025 10:14 pm

You'll hear .06" as an audible THUNK CLUNK.
Think about how much stress that puts on the rods every time the clutch is actuated...

VW_Jimbo Sun Aug 10, 2025 10:52 pm

scrivyscriv wrote: You'll hear .06" as an audible THUNK CLUNK.
Think about how much stress that puts on the rods every time the clutch is actuated...

Plus how radical the timing would be. Everytime you accelerated or decelerated, the timing would change!

Man, the drivability complaint would be crazy odd sounding!



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