Re: [ihc] Weird engine problem - calling the experts

[Scott Machalk <smachalk@xxxxxxxxxxx>]

Ok, thanks for the help so far. I haven't been out to the garage but here 
is a response to some of your ideas:


> Slower check and repair:  pull the intake, knock out all of the welch
> plugs, remove the EGR, chisel out the coke, and take it to a shop to have
> it hot tanked, shotpeened, and magnafluxed.  Either you will find a crack
> or your wont.
I had taken the intake to the machine shop. It was hot tanked, shot blasted 
and I think I had it magna-fluxed at the same time but I can't find the 
receipt so I'm not sure. I don't remember anything about there being plugs 
underneath so, if I end up pulling the intake, I will check these.

I have removed the EGR and put a plate over the opening. Could this be 
causing the problem?


> Vacuum leak.  Get a can of starting fluid, some use WD40.  Spray a
> little squirt here and there around where leaks may be.  If the idle
> picks up or changes, it's pulling in the fluid as extra fuel(along
> with air).
I've also heard you can use propane to do this. Has anyone tried this?

> Another point to check would be distributor function.  IE, what's the
> timing doing when it's acting weird?
Yes, that is something I will check out. Maybe I will just get a new 
distributor. Anyone have any good sources for these? Can I just order one 
from NAPA?

I think this answers most of the suggestions you had. Some new stuff for me 
to check.

Thanks
Scott