Flywheel crankshaft question..
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Joined: Jan 2005
Posts: 396
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From: Queens NY
Car: 86 Camaro Z28
Engine: 350 sbc goodwrench
Transmission: T-5 in the works
Axle/Gears: 10 bolt 3.42 open
Flywheel crankshaft question..
My flywheel has 7 holes but only uses 6 bolts .
My question is why is there that extra hole?
I noticed the crankshaft also has that extra hole.
I also took notice that some of the crankshafts have a pin in
that hole, the crank on my car doesnt have that.
Is it for balance or is it just to hang the flywheel for bolting it up?
My question is why is there that extra hole?
I noticed the crankshaft also has that extra hole.
I also took notice that some of the crankshafts have a pin in
that hole, the crank on my car doesnt have that.
Is it for balance or is it just to hang the flywheel for bolting it up?
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
IIRC--and I mean, IIRC, the hole is for a dowel pin, some cars have it and some don't (my 85 didn't), but regardless, you should line the holes up.
JamesC
JamesC
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Joined: Sep 2005
Posts: 272
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From: Yuma, Arizona
Car: 1991 camaro RS
Engine: 350,vortech heads,zz4 cam,3:73 posi trac,edelbrock carb,wiend stealth intake,raven mufflers,hooker supercomp shorty headers and y-pipe.
Transmission: th700r4
The holes on the crankshaft? Aren't those oil passages?
Thread Starter
Member
Joined: Jan 2005
Posts: 396
Likes: 0
From: Queens NY
Car: 86 Camaro Z28
Engine: 350 sbc goodwrench
Transmission: T-5 in the works
Axle/Gears: 10 bolt 3.42 open
I meant the flange if you can call it that where the flywheel bolts
up to the crank..
up to the crank..
Joined: Sep 2005
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Way back in the Civil War days, some carnks had a dowel pin.
Most didn't, and almost none at all do any more.
I suspect it had something to do with the machinery used at the factory to automatically assemble the motor.
Just use the hole as your assembly indicator, and don't worry about whether it has the pin or not.
Most didn't, and almost none at all do any more.
I suspect it had something to do with the machinery used at the factory to automatically assemble the motor.
Just use the hole as your assembly indicator, and don't worry about whether it has the pin or not.
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Thread Starter
Member
Joined: Jan 2005
Posts: 396
Likes: 0
From: Queens NY
Car: 86 Camaro Z28
Engine: 350 sbc goodwrench
Transmission: T-5 in the works
Axle/Gears: 10 bolt 3.42 open
I was concerned about the details,when doing something
for the first time usually something will pop up thats not covered
So I tried a search first and nada.
for the first time usually something will pop up thats not covered
So I tried a search first and nada.
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