From: Darrell Ramsell (daram@comcast.net)
Date: Mon Oct 24 2005 - 16:51:02 PDT
Fred
From the information I gathered it appears that my oil pressure change was
Anyway, I've only had my HMMWV for a little over a year now but I'm still
Darrell
----- Original Message -----
> Sorry about answering a question with another but is there such a thing as
because I was pushing the engine for a long period of time. This is the
first time I towed my M-101 trailer up over the Sierra Mountains on I-80 (I
was going from Sacramento to Reno). From Auburn to Truckee it's basically
50 miles all up hill. I think now the combination of a long up hill climb
and trying to keep the same speed I normally drive at when I go over the
Sierra's was making the engine run at a constant hotter temperature than
normal. I think this cause the oil to thin out or start to break down a
little or both which resulted in a drop in my oil pressure. When I drove
back 2 days later over the Sierras I took it easy on the engine and I had no
problems with my oil pressure. In fact it was reading normal the whole way.
Also, going from Reno to Sacramento it's only a 20 mile climb up hill but a
little steeper. So I don't know if the shorter climb, driving slower or a
combination of both made the difference.
learning about it capabilities and limitation. I also make my HMMWV work
for a living too. I drive it regularly. I've towed as much a 6,500 lb with
it (3,000 in the M-101 & 2,000 in the HMMWV & 1,500 in trailer weight).
I've driven it to LA once, Reno 3 times and Truckee 3 times. I've had it at
altitudes from sea level to 7,800 feet and driven it in the snow in the
mountains to 110' heat in the desert. There are a lot of stories in this
but I'll share that at a later time.
From: "Fred Martin" <mung@in-touch.net>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Monday, October 24, 2005 1:18 PM
Subject: Re: [MV] Mystery oil pressure problem
> a gage that isn't altitude compensated? Seems the problem only showed up
> at altitude. Fred
>
> Darrell Ramsell wrote:
>
>> Mystery
>>
>> Gents
>>
>> I drove my HMMWV this last weekend from the San Francisco Bay Area to
>> Reno and back. On my trip I experience an unusual oil pressure problem
>> that I hope some of you Diesel Engine Experts can help me with.
>>
>> Friday night I drove out to Reno. As I was crossing the Sierra Mountains
>> at about 4,500 altitude my oil pressure dropped about 15 psi. Normally
>> when I drive it's at 60 psi & 30 psi when idle. So now it was at 45 psi.
>> I stopped at a Rest Area and check for leaks and the oil and everything
>> was fine. I also tested the engine. When I stepped on the gas the oil
>> pressure went up then dropped when I let of the gas. I asked a trucker
>> at the stop for some advice. After he check things out he said I should
>> be okay. As I continued the oil pressure reading dropped to 30 psi but
>> the engine seemed to be running fine. By this time I had reached the
>> summit and since the rest was down hill I decided to continue on. As I
>> started going down hill the oil pressure went up to about 40 psi and
>> stayed there. I finally made it to my destination with no problems.
>>
>> I discussed the problem with some friends in Reno and they felt I should
>> be able to drive home. So I drove back to the Bay Area today and my oil
>> pressure was normal all the way home (60 psi driving & 30 psi idle). In
>> fact it ran just fine.
>>
>> The only other thing I noticed was that there appeared to be some oil
>> residue around where the exhaust manifold attached to the block but it
>> was just in one spot and I could tell it this was fresh or not.
>>
>> So my thoughts now is that perhaps I might had a fluke with the oil
>> pressure sender unit or gage is going bad. But the oil residue around
>> one of the exhaust manifold and engine block concerns me. Maybe the
>> gasket has a small leak or it's something else and if it does I don't
>> know if it's related. So if anyone can help me solve my dilemma I'd
>> appreciate it.
>>
>> Thanks
>>
>> Darrell
>>
>>
>> ----- Original Message ----- From: "jhooah" <jhooah@mindspring.com>
>> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
>> Sent: Sunday, October 16, 2005 12:14 PM
>> Subject: [MV] TP filter, 'secret" Fuel ingredients and AN/TAS-4 parts
>>
>>
>>>
>>> How about using the Toilet paper filters for filtering the WVO as a
>>> pre-filter, then burn it in the Deuce... Should save $$$ on the primary
>>> filters.
>>>
>>> The "Secret" ingredient that company sells is likely the pre-mixed Lye
>>> and methanol so you can merely add it to a vat and do the rest of the
>>> work like Bjorn has done in individual steps.
>>>
>>>
>>> Funny thing happened following the Mil Show the other day, the local FBI
>>> called up to ask if I knew anything about a guy driving an Anti-Tank
>>> missile jeep around my area during a rain storm last Saturday... I said
>>> "Sure, it was me"...... Seems someone called in to complain about my
>>> demilled TOW jeep driving to the show... Really something a terrorist
>>> would drive around in when they are trying to sneak up on you eh?
>>>
>>> I'm seeking AN/TAS-4 Thermal Night sight guts... I want to fix the
>>> Thermal for the kids to see through....(don't want any other TOW
>>> electronics, not going for operational system here, just the thermal
>>> parts...)
>>> Could buy a Soviet version,maybe Iraqi, but that's not "restoring it"
>>> and defeats my intended purpose. if you haven't looked through a
>>> Thermal, do so at a Military show one day...Neat, just like "Cops"
>>> chasing crooks with helicopter stuff.
>>>
>>> Regards
>>> W Winget
>>> Virginia
>>> www.vmpa.us/aw
>>>
>>> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
>>>
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>>>
>>
>>
>>
>> ===Mil-Veh is a member-supported mailing list===
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>> To reach a human, contact <ack@mil-veh.org>
>>
>
>
> ===Mil-Veh is a member-supported mailing list===
> To unsubscribe, send e-mail to: <mil-veh-off@mil-veh.org>
> To switch to the DIGEST mode, send e-mail to <mil-veh-digest@mil-veh.org>
> To reach a human, contact <ack@mil-veh.org>
>