The end cap on my oil cooler was leaking coolant where it bolts to the block. I replaced the o rings on the cooler and the gasket on the end cap and I have a leak again. I thought I did a good job of cleaning the old gasket off the block and end cap. Is there something I am missing here? Somebody know what the torque specs are on the bolts?

 

i just did mine. mine was 19 ft lbs rear bolts 24ft lbs front 2 bolts

96 f250 ps

 

Thanks. Ill try to torque the bolts and see what happens.

 

Was there any pitting from corrosion?.. I used a little sealant on mine.

 

My book said 24 foot pounds for the front 2 bolts and 14 for the rear. I just rebuilt my cooler too about 4 days ago. I actually took the newer one off my 97 to rebuild and put on my 94. This morning after a night of snow and nasty cold the front header was running oil out of it. I am about tired of this. I crawled under and barely turned the bolts and it stopped. Does anyone think I need to replace the gasket again or should it be ok now? It's about 20 degrees out and really windy so it's nasty and I don't really want to do this again.

 

Every thing looked ok fwir. Cleaned things up pretty good. The gasket I used had a blue oring built into it around the holes the coolant would pass through. Thought I was good for sure.

I feel your pain. I had to shovel snow to get under the front of my truck to replace the CPS a while back. Then a few weeks later I froze my butt off dealing with the cooler. I just had to back off of the three bolts to bring them to the 19 pounds. Cant see how making them looser will help but going any tighter might strip things and I had to do something. I don't want to do this **** again either. And if yours ain't leaking I wouldn't mess with it. Not till its sunny and 70 any way.

 

I pulled the cooler off my wifes truck last week while it was parked with my farm equipment out in the field, snowing and raining like crazy that day too. It was not fun laying in the mud doing that!

This morning I had to shovel some snow too so I could get under it on the creeper. It's a booger putting a torque wrench on the front two bolts. How did all you guys do it? I can get to one of them from below but for the other one it takes an extension and extensions really mess up the reading on a torque wrench.
I think when it warms up, I'm going to dump the oil and water and pull those two bolts back out. I chased all the threads because the bottom bolt was stripped a little and I put a little oil on the bolts but I want to pull them and put some antiseize on them and retorque. That will probably help. I'm paranoid about fixing things right. It really sucks breaking down in the middle of nowhere. Last time it happened to me I was up at big bear about 25 years ago and 20 miles from the nearest pavement. The Hells angels saved my butt that day. They even gave me a ride, towed my car to a shop and fixed it for me. Nice guys really. I don't ever expect that kind of luck again though.

 

Do you recall what type of sealant you used. It looks like I am going to be doing this over and I am hoping it will be the last time. I am also hoping this is where the coolant is getting into my oil. Got a lot riding on this. If this don't fix the oil in coolant problem it might be injector sleeves or a head gasket or worse. And now it looks like the cooler will always be a possibility.

 

I used a light (very light) coat of Yamabond. ( bike dealer is next door.)..

 

I'm glad I have a manual some days. ....

 

Transmission??!! LOL

 

Anybody know if the bolts on the rear end cap are tapped into the block to the point where water can get through the bolt hole? I know the bottom left side is a thru hole but it goes through a tab and not into the water jacket?

 

Where is TJ when you need him...?

 

All I can say is I didn't have to seal the bolt threads ...

 

I pulled the front gasket back out of mine yesterday and put a thin coat of grey silicone on it then put some antiseize on the two bolts and torqued them again. It's not leaking any more oil now!

I still can't figure why it was leaking on mine. Everything seemed perfect on it, gasket was on the right way and everything. Just weird.