Dan's Engine Woes

["Dennis C. Ogg" <dcogg@domain.elided>]

Dan,
I don't know exactly how an IH oil pump is put together, but are any of
the gears pinned or keyed either on the pump end or the drive end?  If
this is the case, is it possible that the key or pin got sheared and
only slips after it is warmed up.


Dennis Ogg


> 
> Date: Wed, 24 Feb 1999 01:52:03 -0500
> From: Matt Palguta <mpalguta@domain.elided>
> Subject: Dan's Engine woes
> 
> Dan,
> 
>     Just a thought. With the known difficulty that some engines develop from
> clogged oil returns down thru the engine (smallish holes) would it be
> reasonable to check these for mud? Engine starts and oil is pumped out of
> the pan (pressure). Oil cannot get back down to the pan at anywhere near
> sufficient a rate (low press). The oil drains slowly and at startup can be
> pumped but gets "stuck" up high after a short run. The effects of this
> blockage could be very bad on other components.
> 
> How difficult would it be to clean these out? Can a stiff wire be run down
> the drains? If this is happening I'd expect a lot of oil say in the valve
> covers after running a bit. However if the engine is starving for oil
> circulation running it to test may not be warranted. Any ideas out there on
> if the drains can be run through pipe cleaner style?
> 
> Matt
> 1980 Scout II
> 
> Dan Nees wrote:
> Date: Tue, 23 Feb 1999 15:11:46 -0500 (EST)
> From: cookiedan@domain.elided (Daniel Nees)
> Subject: Re: problems
> 
> Negative. Oil pump works. No clogs. I have pressure at start-up, but;
> within minutes it drops to nonexistent.
>