Caterpillar 3126B oil cooler problems

[hike]

Thank you @Keith Knight, and everyone else for thoughts and questions. While I would prefer not to do this you have pointed out that for some time and a couple hundred dollars this is a maintenance task level project.

Where did you find torque specifications and such? I recall having books on all our CAT equipment we used, though that was 30 years ago—

 

[hike]

Well the IFS filter is the real protection IMO, even thou I've not bought one yet. I'm Saving up lol..

The IFS is the high pressure filter on the HEUI output? Since I haven't kept up on this issue: filtering after the HEUI pump is better than before? or simply the best place to add a secondary filter?

Next question is for the time and money, isn't replacing the oil filter housing gasket best? Do we need secondary filter after replacing the gasket?

 

[Keith Knight]

On our 3126B we can’t put a filter before the HEUI pump so putting after protects the injectors and everything else after that. Basically preparing for the HEUI pump to fail. Replacing oil cooler and filter housing gaskets and if needed a flatter oil cooler or machining it flat what ever you decide. But the IFS kit is cheaper than replacing all the injectors. Replacing the HEUI pump is something that I could do on the side of the road if necessary. But replacing the HEUI pump and injectors on the side of the road not so doable. In my opinion.

 

[Keith Knight]

Thank you @Keith Knight, and everyone else for thoughts and questions. While I would prefer not to do this you have pointed out that for some time and a couple hundred dollars this is a maintenance task level project.

Where did you find torque specifications and such? I recall having books on all our CAT equipment we used, though that was 30 years ago—

I went with standard torque ratings for M8 bolts. For the filter housing and everything else is like alternator bolts and brackets I just tightened by feeling! LOL!!! Exhaust nuts tighten them really good too.
Also while I was working on it I discovered some soot near the exhaust manifold and block closest to the transmission. Turns out I had a loose exhaust manifold bolt.
Also found a missing bolt that holds the intake tube to the block. Just saying keeping a clean motor and looking for leaks or anything else on a regular basis prevents bigger problems in the future.