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crank pulley leak
Posted by: GWLee ()
Date: January 09, 2019 01:13PM

I have q question, I have a very very small leak of oil from the rear of the crank pulley. With a good light it looks like it is coming from the 2 bolts on the crank pulley. It is on the rear of the pulley.

When I took this engine apart to reseal it I replaced the rear crank seal and I also put sealer on the crank bolt.

Have you ever seen just a tiny bit of oil coming from those to pulley bolts. Most likely the crank bolt leaking?

I just replaced the oil filter and I'm going to check and see if oil is leaking from there, but it did this with the old filter.

I just can't imagine that they are leaking since they are not into the engine.

Took the 60 out today for its first run since installing new push rod tube seals. Was cold out but the 60 ran great!

Thanks much for any ideas!

Lee Adkins

A Cave Man car
1960 2dr Coupe with pg
Color Tasco Turq.
With Ermine white top.

Catlettsburg,
In the Beautiful state of
North/East KY!

Not the best pic, but the only I had from then, 1997!

2016!

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Re: crank pulley leak
Posted by: steve c goodman ()
Date: January 09, 2019 01:21PM

Since the two threaded holes are through the pulley only
there isn't oil actually connected to them, My first
guess might be if you used a liberal amount of grease
around the pulley hub/seal that some might be just
pushing through the holes as the pulley turns and gets
warm too. I would think if the pulley seal is leaking
you would see oil in skid plate on of course on the
floor below the end of the engine.

NOTE: use of words 'guess' 'might' 'think' 'if'.

Drive it and watch it. Good luck, you have done well
getting the car going again.

best wishes, Steve
Rear Engine Spec. Inc. Golden, Colo.

1962 spyder 3.0L turbo---1965 Crown V8
1967 monza 110/4---1968 monza 110/4
1971 amante gt 110/4
CORSA/RMC/PPCC

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Re: crank pulley leak
Posted by: GWLee ()
Date: January 09, 2019 01:33PM

Thanks Steve for the info.

I meant to mention I also rubbed my finger on the engine side of the pulley which is closest to the crank seal and it is dry!

I knew there wasn't any oil on the bolt holes but it sure looks like it is coming from there!

I'll keep an eye on it, I will not be driving it much, since I have to have surgery to prep for dialysis.

Thanks for the heads up!

Lee Adkins

A Cave Man car
1960 2dr Coupe with pg
Color Tasco Turq.
With Ermine white top.

Catlettsburg,
In the Beautiful state of
North/East KY!

Not the best pic, but the only I had from then, 1997!

2016!

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Re: crank pulley leak
Posted by: corventure Dave ()
Date: January 09, 2019 03:19PM

One trick I do is to hand mill the rear cover to give the gasket a flat surface to adhere to.
Here I am doing it with the carburetor venture cover. But the process is the same with the engine rear cover. 400 grit sand paper. I use wet-dry and lubricate the paper with WD-40. Place the paper on plate glass for a flat surface to work on.

This will go a long way to beating pesky rear cover oil leaks.

Corventure Dave

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Re: crank pulley leak
Posted by: vairmech ()
Date: January 09, 2019 03:54PM

What happens with the crank pulley is where it goes on the crank oil will seep past the key and come out past the bolt washer. I always put a little RTV in the key way when I put a pulley on.

BTW, this is a tech tip in the tech guide!

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com



Edited 1 time(s). Last edit at 01/09/2019 03:54PM by vairmech.

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Re: crank pulley leak
Posted by: GWLee ()
Date: January 09, 2019 04:31PM

Dave thank you for the tip. I did that when I had the rear housing off!

Ken I remembered reading that when I had the engine torn apart. I'm pretty sure I did that on the key but now I can't be so sure. Been to long and I've slept since then.

I wondered if it was creeping up around the washer on the crank bolt, and then leaking on the bumper side of the pulley.

Worse comes to worse, I'll pull the pulley off later and hopefully check it.

Thanks guys,

I was just happy to be driving it again, today,

Take care,

Lee Adkins

A Cave Man car
1960 2dr Coupe with pg
Color Tasco Turq.
With Ermine white top.

Catlettsburg,
In the Beautiful state of
North/East KY!

Not the best pic, but the only I had from then, 1997!

2016!

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Re: crank pulley leak
Posted by: JimBrandberg ()
Date: January 10, 2019 04:51AM

I will mention that I do not use viton crankshaft seals on either end.

Jim Brandberg
Isanti, MN
CorvairRepair.com

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Re: crank pulley leak
Posted by: GWLee ()
Date: January 10, 2019 05:09AM

Thanks Jim, I didn't but started too use one. Until the thread started about not using them on the front and rear seals. Then I bought the seal recommended by Steve G.

Lee Adkins

A Cave Man car
1960 2dr Coupe with pg
Color Tasco Turq.
With Ermine white top.

Catlettsburg,
In the Beautiful state of
North/East KY!

Not the best pic, but the only I had from then, 1997!

2016!

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