Author Topic: Phil!!! You inspired me!  (Read 16796 times)

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Offline phil_long

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Re: Phil!!! You inspired me!
« Reply #60 on: September 21 2012, 12:47:31 PM »
well, we guessed that one right...Me, I am glad cause I would have felt really bad if it was not.  Makes that rebuild sound kinda strange to me, tho...almost everyone puts a new timing set on when they rebuild one.

If the compression is good, the valves should be fine.

Sounds like more progress than you had thought
Def more progress than I thought.  Given the nature of the rebuild, when i bought the car i literally didnt know shit, meaning the exact mileage of the rebuild, etc. Im learning now though. Its odd that all the teeth would "break" at once? Like the car ran fine until one day I turned it off, and it wouldnt start.

Offline earlbrown

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Re: Phil!!! You inspired me!
« Reply #61 on: September 21 2012, 01:14:47 PM »
They can be broken for years and you won' t even know it. The timing chain wrapped over half way around the top gear so you have to lose a bunch of teeths before it shows itself.
'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline phil_long

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Re: Phil!!! You inspired me!
« Reply #62 on: September 21 2012, 03:47:16 PM »
Thats so weird. And the broken teeth doesn't effect driveability until the wrong moment in most cases huh?

Offline earlbrown

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Re: Phil!!! You inspired me!
« Reply #63 on: September 21 2012, 04:10:56 PM »
There's 40 teeth on the top gear and the chain is engaged to 25 of them at all times. It takes a pretty big gap before the load can sheer the rest of them off.

It's like a light switch when it gives up the ghost too. I've had it happen to me twice.
'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline Steve Wood

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Re: Phil!!! You inspired me!
« Reply #64 on: September 21 2012, 04:26:37 PM »
what he said  :)
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A lot of broken parts does not make you a racer; it makes you a slow learner.

Offline daveismissing

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Re: Phil!!! You inspired me!
« Reply #65 on: September 21 2012, 07:08:13 PM »
Impressed that the number is 26, must be a really loose chain :) 


edit: crap, forgot the other gear is small , Earl probably counted them anyways
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Offline Steve Wood

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Re: Phil!!! You inspired me!
« Reply #66 on: September 21 2012, 08:06:49 PM »
it gets looser as the teeth wear down and then off

remember it is a coating not the complete gear
Steve Wood

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A lot of broken parts does not make you a racer; it makes you a slow learner.

Offline phil_long

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Re: Phil!!! You inspired me!
« Reply #67 on: September 25 2012, 10:47:09 AM »
makes sense.

 

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