Info needed: 1967 M38A1 Lubrication?

[Les Kovacs]

Rob....thanks for clarification.

The jeep got a new pinion seal this AM....took only 30 min....I let the mechanic know where to apply the RTV as per your earlier suggestion....drove home and so far no leak/weep....the old seal did not have any rubber seal left at all. Old one used to leak standing still overnight....gave me a chance to change diff oil again as the first change (two weeks ago) oil came out like malted milk.

With new add a leaf on the driver side both sides now measure 37 inches to top of rear fender well. Mechanic did say that now with 13 leaves there is no issue with U joint-over-angularity at diff or coming out of the transfer case.

PS.....with all this priceless knowledge about M38A1's, I assume you had something to do with the vehicle maintenance in the military....if so, thanks for your service!

Regards,

les

[maple_leaf_eh]

Originally Posted by Les Kovacs

....

PS.....with all this priceless knowledge about M38A1's, I assume you had something to do with the vehicle maintenance in the military....if so, thanks for your service!

Regards,

les

My service was to drive around in these vehicles as a teenager and into my early 20s, learning about soldiering. Since then I've owned a few M38A1s, one of which Rob surveyed for its faults. My current money-pit is a 1974 Pattern M151A2.

[Les Kovacs]

Interesting....I would not mind owning a M151....however, they never come up here in Ontario....keep looking at kijiji & other sites but no luck....M38A1's and older MB's come up every once in a while but never M151's.

les

[maple_leaf_eh]

Originally Posted by Les Kovacs

Interesting....I would not mind owning a M151....however, they never come up here in Ontario....keep looking at kijiji & other sites but no luck....M38A1's and older MB's come up every once in a while but never M151's.

les

Mine turned up on Kijiji in Edmonton, and was publicized here on CGN.

[Les Kovacs]

I am now confused about which spark plugs to use....I finally pulled the plugs from my M38A1-CDN2...the first plug closest to the rad was an Autolite 2245...the rest of them were Autolite 2243.....all 4 came out well and all 4 had a light tan colored resistor/ceramic (is this good?).

OK...so which spark plug (Autolite 2243 or 2245)is correct for this application (F head) as I am confused. An on line jeep store sent me Autolite 2243's a month ago before I realized that there may be other more appropriate applications.

Thanks for your response.

les

[rob love]

2243 is the equivalent of the old Auto-lite AR5s, which is the cold plug. If you have an oil control problem, or the plugs foul up, then 2245 (AR7s) is the plug to use.

There are also the Champion XMJ14 and XMJ17 which are interchangeable. The Champions now use a new number which I don't know off the top of my head but is easy enough to find.

My information is that Autolite is no longer making the 2245, and may have also dropped the 2243, so it is going to get a little harder (and expensive) to get plugs in the future. I can still get 2243 plugs at under $13 a plug. The Champions are up around $28 a plug with a trade price of arouns $18.

[Les Kovacs]

Thanks Rob....I guess I will be buying more 2243's....the plugs were not fouled (all three 2243 & the single 2245 I took out) in fact they were all nice light tan on the insulator suggesting a clean burn....which leads me to my next question....then where is my oil going?.....I am loosing about 1/2 a quart of 15W40 in approx. 200-300kms. There is no visible oil in the coolant (which has remained new looking and bright green), the exhaust does not blow blue smoke on start-up (valve seals) nor smokes on the drive....I leak 1-2 drops per day from the area around the rear main seal and that's it. Where is the oil going?

Regards,

les