Chevy oil leak

[60mph]

I have just driven my 6.3L GTR for the first time since delivery of all the bits in March.
It has an old style chevy block with a two piece rear crank oil seal.The engine is new AmSp .There is a leak from this seal.I cannot tell how bad the leak is when the car is on the move but idling it drops about 4 drips every 10 mins.I would like to know from experienced owners the following.
1.Is this common?
2.If fitted properly are these old type seals oiltight?
3If so for how long?

Thanks in advance

Frank

[Boosted LS1]

It's a seal and is meant to be oil tight. Are you sure the leak isn't from elsewhere?

[GTRCLIVE]

I Hate to break it to you yes they leak from every place eventually...... Get used to it...

PS crank seal leaks are rarer though... and more of a Pain....but then again it was built by you know who..

[60mph]

Thanks Clive
I d'ont mind news as long as its correct news!I also am in Midlands, near Stourbridge.If you fancy a visit let me know.I assume you must be more than 10 miles away as I hav'nt heard your engine!

Frank

[Kobialka]

60mph said:

I assume you must be more than 10 miles away as I hav'nt heard your engine!

Frank

10 miles away! Geez you guys are lucky. I don't have a neighboring Ultima that I know of for hundreds of miles. Send some more cars over!

Shane
www.myultimagtr.blogspot.com

[Captain Slog]

60mph said:

Thanks Clive
I d'ont mind news as long as its correct news!I also am in Midlands, near Stourbridge.If you fancy a visit let me know.I assume you must be more than 10 miles away as I hav'nt heard your engine!

Frank

I must have my facts wrong, I thought Clive now lived in Canada?

[60mph]

Thats why I hav'nt heard his engine !

Frank

[Steve_D]

Does the car have a PCV valve fitted or the factory oil catch Tank.

I had leaks from all over the place until I fitted a PCV. Can't say my engine is now completely dry but what little there is stops the chassis from going rusty.

Steve

[60mph]

I d'ont know what aPCV valve is.Is it a way to reduce crankcase pressure?I have been thinking of a way to reduce crankase pressure to limit the oil leak.There are just 2 open breathers on the rocker covers.I have stopped these covers leaking !

Frank

[Captain Slog]

60mph said:

I d'ont know what aPCV valve is.Is it a way to reduce crankcase pressure?I have been thinking of a way to reduce crankase pressure to limit the oil leak.There are just 2 open breathers on the rocker covers.I have stopped these covers leaking !

Frank

I found this link for you, not a full explanation but goes somewhere near,at least its in a visual presentation.

http://www.enginefactory.com/video/chevy_installat...

Steve

[Boosted LS1]

PCV valves have been discusse her before. Basically they're supposed to keep the crankcase in a state of vacuum which greatly reduces oil leaking out from seals etc. Open vents are messy imo but convenient. They are more suited to race cars with catch tanks.

[GTRCLIVE]

Captain Slog said:

60mph said:

Thanks Clive
I d'ont mind news as long as its correct news!I also am in Midlands, near Stourbridge.If you fancy a visit let me know.I assume you must be more than 10 miles away as I hav'nt heard your engine!

Frank

I must have my facts wrong, I thought Clive now lived in Canada?

Your not wrong, But in his defence I did only move in 2007 and did live just south of Coventry.....

FYI I kind of got pissed of with My Oil burning Oil leaking Old SBC I had.. It never let me down and went well, but the frequent trips above 6500rpm and Basic internal design does mean It tends not to breath well from the sump.... So without having a Drysump and
any other fancy Breathing system It just leaked out any place it could.... Great fun but began to hate cleaning up after..... Hoping my new LS7 wont be the same, and after reading all the development on the LS motors they have spent some time on the breathing system, so now they can do 7000 rpm from GM... where as t old units where never designed for it........

Hope that explains my comments... all the best Clive