<VV> Re. Re: Here we go again (Total Seal)

[Bob Gilbert]

Howdy Folks, 

To a note, I used Total Seal rings in 650 Yamaha back in the mid 70s. I 
had installed a pcv valve to replace the road draft tube. After the 
engine rebuild, because I wanted to not that it was worn out, the valve 
clicked, I guess because of increased vacuum. Better seal, more vacuum???

Bob
cwiland at zzz.com wrote:

> Crawford said:
>
> "I recommend that the fellow with the leaking turbo carbon seal 
> replace the
> seal where he has seen that he has oil in his intake. It doesn't make 
> sense
> that the increased engine vacuum is causing the problem and I would
> certainly not change the engine's piston rings because the turbo is 
> leaking
> oil!  Also, you may be permitting gasoline to wash into your turbo 
> bearing
> by continuing to run the turbo with a bad carbon seal."
> -----------------------------------------------------
>  I have rebuilt my turbo with new seals and according to the shop  
> manual. I suppose I could have screwed that up but everything was set  
> up to specs in the manual. I have read of increased vacuum causing  
> this problem in Hugh McInness" book about turbochargers, so it does  
> make sense to me. Remember, the problem shows up at extended idle  
> periods where the vacuum is highest.
>  I also don't think much gasoline could get past the seal since it is  
> on the intake vacuum side of the seal.
>
> Craig
>
>
>