Coolant Leak

[Moto4Life]

I have a '73 M35a2 and it appears to be leaking coolant from the oil cooler, just behind the oil filters, or where the oil cooler mates to the block. Is this a common place for the multifuel to leak coolant? Thanks in advance!

 

[Goose2448]

Its a Deuce, it leaks everywhere all the time. Have fun tracking down and fixing leaks. Its gonna be a 40 hour a week job.

 

[Heavysteven]

It appears so, I copied this from a recent thread. Good luck


Engine Parts supplier and Oil Cooler Part Numbers
As my oil cooler started to leak coolant, I was in need to find the correct gaskets and packing o-rings. After consuting with a local heavy diesel shop that knows their stuff, they cross-referenced our LDT-465 engine to a Hercules D4800T (T for turbo). At $2.90 for each gasket (oil cooler to housing and oil cooler cover) and $2.00 for each o-ring, I was out the door pretty cheap with new parts (not gaskets/orings from the 60's and 70's).

Hercules Distributors

That link will show you suppliers in your area.

Here are the part numbers as follows:

(1) Oil cooler to housing: HER375098-00
(1) Oil cooler cover: HER375101-00
(2) O-rings/packing: HER 207388-00

Hope that helps, I know I was in a pickle! The guys at the shop even let me borrow a manual for the engine... great information!
*

 

[porkysplace]

Heavysteven THe link didn't copy .
Tm's for the multi ;
TM9-2815-210-34-1.pdf
TM9-2815-210-34-2-1.pdf
TM9-2815-210-34-2-2.pdf
TM9-2815-210-34P.pdf

 

[gimpyrobb]

Heavysteven THe link didn't copy .
Tm's for the multi ;
TM9-2815-210-34-1.pdf
TM9-2815-210-34-2-1.pdf
TM9-2815-210-34-2-2.pdf
TM9-2815-210-34P.pdf

It wasn't a link, it was text from another thread! You must not be keeping up, get on it!

 

[porkysplace]

It wasn't a link, it was text from another thread! You must not be keeping up, get on it!

This through me off ; That link will show you suppliers in your area.

I got the TM's right

 

[crazywelder72]

speaking of leaks, i got my first coolant leak today. top radiator hose. where its so short it seems as thou it will be a bear to install. anyone do it yet? any tips?

(sorry for hijacking the thread)

 

[gimpyrobb]

In the original thread, that link worked, probably just didn't like being copied!

 

[crazywelder72]

found what i was looking for... nevermind

 

[cranetruck]

This is the oil cooler gasket area, may not be so bad to fix...don't think it's a common problem, though. The hose connection behind the oil filter canisters would be my guess.

 

[maddawg308]

Another common leak is through the radiator cap, if the overflow tube gets clogged with corrosion over the years. Mine got clogged, and running down the road coolant just started spewing out the side engine cover. The pressure built up, the overflow had nowhere to go, starting coming out the radiator cap, and the fan blades did the rest of the mess. Simple fix, a wire coat hanger shoved down the overflow pipe fixed it.

 

[joshs1ofakindxj]

This is the oil cooler gasket area, may not be so bad to fix...don't think it's a common problem, though. The hose connection behind the oil filter canisters would be my guess.

What size is that hose? Do you know if NAPA sells it? Thanks!

 

[rosco]

They will have it. Any of the straight hose is easy to find. Its usually sold by the foot.

 

[glcaines]

I just had a coolant leak in my A2 on Saturday. I had volunteered to haul some plants for the local garden club in my A2. Coolant is spewing from the overflow tube, which leads me to believe I need a new radiator cap. The truck is running at the correct temperature. I haven't had time to troubleshoot the problem yet. I used my A3 to haul the plants.

 

[joshs1ofakindxj]

They will have it. Any of the straight hose is easy to find. Its usually sold by the foot.

Napa did have it for $20 a foot, 2" I believe, and the counter man said that's just ridiculous and sold it to me for $15 a foot. One foot gives me enough to do the two hoses on the oil cooler line and the two hoses on the manifold lines.

I'm not running coolant leak free. Woohoo!