Re: update from the CUCV 6.2 diesel that was smoking

From: Sonny Heath (sonny@defuniak.com)
Date: Sun Mar 19 2006 - 07:49:18 PST


How is it recognizable Jeff?

Sonny

----- Original Message -----
From: "Jeff Hain-Matson" <flmv@flmv.net>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Sunday, March 19, 2006 9:24 AM
Subject: Re: [MV] update from the CUCV 6.2 diesel that was smoking

> Guess you missed my first post on your problem:
>
> White smoke is normally an under fuel indicator....
> Pumps are matched to injectors, and engine. You should stick with all 6.2
> or
> 6.5 parts as they are meant to be together. A friend of mine with a fuel
> shop once told me how much he loves junkyards, as they will sell "cheap
> people" a pump or injectors. That doesn't work most of the time, and the
> people come back to him and then have to spend even more so he can convert
> what they bought (having lost the correct core at the junk yard) or sell
> them at core and then build it for their application.
>
> good luck
>
> --
> JEFF HAIN-MATSON
> FRONT LINE MILITARY VEHICLES WEB SITE: http://www.flmv.net/
> WRIGHTSVILLE PA
> 717-252-4489 VOICE
> 717-252-4499 FAX
> flmv@flmv.net E-MAIL
> MVPA #1833
> IMPS #1726
> MVT #9362
> ----- Original Message -----
> From: "Jim Zehr" <jimm1009@yahoo.com>
> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> Sent: Saturday, March 18, 2006 3:08 PM
> Subject: [MV] update from the CUCV 6.2 diesel that was smoking
>
>
>>I filled the radiator and the engine with water this
>> AM,installed the new thermostat, and let the engine
>> run
>> for 30 minutes with out driving it. I ran it at
>> various RPMs and idled in between. I let the engine
>> cool for an hour (not overheated, just time for quick
>> lunch).
>> I was able to purchase a new compression test tool
>> from NAPA today. The left cylinders are #1, #3, #5, &
>> #7.
>> The right side is #2, 4, 6, & 8.
>> Compression test done on #1 twice to make sure. #1 390
>> & 385, #3 450, #5 440, & #7 400. #2 450, #4 440, #6
>> 435, & #8 430. This was with fully charged batteries
>> and all glow plugs removed, and 11 to 13 puffs per
>> cylinder (with the wife rolling her eyes the whole
>> time)(she was the key twister).
>> The military standards are 380 to 400 being the low
>> end.
>> Chevy's standards are 300 being the low end. Both
>> books say the low cylinder (per side) should not be
>> less than 80% of the highest cylinder. 80% of 450
>> (#3) is 360psi which is means my weakest cylinder is
>> 25 psi or so to the better.
>> I did find that the low pressure fuel return line on
>> #3 is leaking so I will fix that problem. It seems
>> that I did not have the little clamp properly
>> positioned although this has nothing to do with my
>> smoking problem. I did have a few small bubbles in
>> the water at first but I beleive that that was from
>> having freshly filled the engine with water. The cap
>> was installed and there was no pressure or vacuum
>> after the 30 or so minutes of running.
>> The smoke is still there on the left side only and has
>> no odor and is not steam. Perhaps a sluggish lifter
>> or slightly burned exhaust valve. I have two freshly
>> overhauled and pressure tested heads but don't want to
>> do that yet since I don't have the new head bolts
>> ($120) at this time although I did purchase an
>> overhaul gasket kit to begin the project.
>> Any ideas would be most welcome. Time for a big
>> glass of iced-tea now!
>> Jim in Louisiana
>>
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>
>
>
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