oil leak part 2

[George Witt]

Hank,
If I may chime in here as a repair shop owner and mechanic...
If the bolts were loose and the gasket not present, is it possible
that the bolts failed, came loose and the pressure blew the gasket out?
The fact that no gasket was found only means "no gasket was
found". It doesn't necessarily mean it was never installed.
Tightening bolts stretches them and the resulting stretch
provides a clamping force. If the bolts fail, they stretch too far,
like a rubber band that was stretched too far and they get loose,
since the clamping force is no longer present. This could allow the
gasket to blow out from the pressure. Hence, no gasket could be found.
Next, I believe Federal Law only requires a warranty to be 90
days or 3,000 miles on mechanical repairs, so any warranty would be up
by now.
Moral of the story: Be sure they throw out the bolts that were
loose and use new ones. Once any bolt is found loose, you never
"tighten them up" as they are probably stretched. Also be sure they
use the proper grade of bolt and they're torqued to the proper spec
for the grade and thread pitch. Each grade has a different torque
spec and so does each thread pitch for that grade and size bolt.
This is the reason my shop NEVER reuses cylinder head bolts when
replacing a "blown head gasket", since the bolts could have stretched
and caused the gasket to blow.
Just some background from a mechanic's perspective...

George Witt
81 FC 35
Lincoln, Nebraska



--- In WanderlodgeForum@yahoogroups.com, "Henry Jay Hannigan"
wrote:
>
> ---Ernie:
> Not sure what Texas legal ground u stand on as that rebuild was a
> while ago, however it was evidently done incorrectly. As such it has
> been a concern since day one of the rebuild. Recommend u chat with
> a Texas attorney(first visit free right?) about the traceable
> problem. Perhaps the attorney or you could m ake some noise to the
> rebuild company and request they pay your bill. No doubt their
> screwup caused it.
> LOL
> Hank Hannigan
> 90SP36
>
>
>
>
>
> In WanderlodgeForum@yahoogroups.com, erniecarpet@ wrote:
> >
> > After the mechanics removed the turbo, they found the blower plate
> bolts
> > LOOSE!! They removed that plate to check the blower. The blower
> checked out
> > fine-BUT- there was NO gasket between the plate and the engine.
> So, whoever did
> > the inframe reman- left out the gasket. It really is rocket
> science!! No
> > wonder I have been plagued with all this oil scum. More later-
> Erniie-83pt40 in
> > Childress, Tx, for a short time, I hope
> >
> >
> > [Non-text portions of this message have been removed]
> >
>