From: Kenny Reed (kreed@pintoeng.com)
Date: Wed May 25 2005 - 11:05:57 PDT
In terms of the older ford diesels high hours really doesn't matter. they
cavitation that you are referring to is a large scale problem on ford diesel
engines up to the 90's style powerstrokes. ford actually sells a bottle of
stuff that is designed to eliminate the chemical reaction that causes the
problem. the antifreeze actually eats away at the cylinder liner and
eventually right into the cylinder causing hyrdolock and a long list of
other things depending on engine speed.
Kenny Reed
1968 M35A2 W/W, Whistler
Hopefully Ring Mount and .50 cal soon
----- Original Message -----
From: "MV" <MV@dc9.tzo.com>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Wednesday, May 25, 2005 1:50 PM
Subject: [MV] Diesel question - could be applicable to MV engines also
>
> I have a generic diesel question that I thought you guys could help me
> with. I have a Ford 6.9 IDI Diesel engine in a truck that has some
> Antifreeze in the oil (maybe 10 ounces or so ) and the engine appears to
> be locked - won't rotate at all. A breaker bar on the crank pulley bolt
> won't budge it. It has been like this for about 6 months apparently.
>
> Before I rip the engine out of the truck and start an overhaul or
> replacement I would like some suggestions.
>
> Would it make sense to pull all of the glow plugs and see if I have a
> hydrolock problem?
>
> Besides head gaskets failures or intake gasket failures - I understand
> some high hour diesel's can suffer from corrosion in the water jackets
> that penetrate the block due to cavitation. How common is this in high
> hour engines?
>
> How would you guys approach this problem? Am I missing anything?
>
> Thanks,
>
> Dave
>
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