From: MV (MV@dc9.tzo.com)
Date: Fri Nov 18 2005 - 11:50:55 PST
What is the normal failure mode of these engines??? Do they simply lose
compression and die that way or ????
I hear of a lot of injection pump problems and cooling problems but the
cooling issues seem to be related to lousy radiators, etc, not
necessarily the engine itself.
Was this engine ever used in a marine application??
Dave
G Shaw wrote:
> The 6.2/6.5 DDA engine may has some other problems. But I would not worry
> about the lower end and main caps and bolts. It has very strong lower
> webbing and four bolt main caps similar to the GM 454 gas ingines used in
> marine use.. You should never have any trouble with the crank area except
> for the harmonic damper issue, for the normal 125-150 K life of this light
> duty motor. It should not be compared to the medium/heavy engines which are
> far more rugged, since it was never intended to be a 500 K engine. It is a
> good engine for what it was intended.
>
> Regards
> Glenn
>
> -----Original Message-----
> From: Military Vehicles Mailing List [mailto:mil-veh@mil-veh.org] On Behalf
> Of MV
> Sent: Friday, November 18, 2005 11:01 AM
> To: Military Vehicles Mailing List
> Subject: Re: [MV] New main bearing caps!
>
>
> I'm not sure what you are referring to, but if you replace the main
> caps, you normally have to have the engine line bored.
>
> If you are looking for max strength, studs are hard to beat. I bet ARP
> sells a set that would work for the 6.2.
>
> Dave
>
> Joe Foley wrote:
>
>>My crystal ball tells me that the main bearing caps on
>>the 6.2/6.5 were too weak, new ones are in the offing,
>>ASAP! Version 2 wasn't much better, they tried to
>>re-use bolts that were too short.
>>
>>Version 3 has been offered.
>>
>>So, if you're rebuilding an engine be patient and
>>wait.....
>>
>>Joe
>>
>>
>>
>>
>>
>>
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>
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