CAT HEUI Oil LEAKS- UPDATE

[wallynm]

This is what I posted to RV Service review which updates this topic.

RV Service Review

I understand this was a common problem with school buses that had this engine. The defective part was a rubber hydraulic hose about 9 inches long and it was leaking at the metal crimp joint on the end of the hose. Thanks to all that responded.

Original Post


We are having a severe oil leak problem form the high pressure side our HEUI unit on a 3126 CAT. Any one else having a similar problem. Unit is 2002 with 90,000 miles. Shop foreman states this is a common problem with this vintage CAT. So much so that CAT has a standard improved "UPDATE" package available to fix it. My analysis is that it must really be a common problem because they stock the "UPDATE" improved repair package for over night delivery. Overnight delivery = we sell a lot of them so stock them. More later

[bsamole]

Canuck,

I also have a leaking huei oil line. Will you please forward your Califotnia mechanics contact information so that I may contact him regarding repair?
Thanks bill

[Canuck1]

Mine started leaking last winter while in California. Had it replaced by a mobile tech. About two hours to do the job. $300 including the new upgraded part. The new line is "steel" not rubber.
Canuck

[wallynm]

24007717 TUBE KIT issued per engine serial number as I understand is different for different engine production runs based on serial number. We will be in Branson starting tomorrow so if you are in the area give us a call.

Wally

wolfe10 wrote:
Thanks for the update and excellent review.

If you happen to have the part number for the upgraded hose replacement, would appreciate it.

[wolfe10]

Thanks for the update and excellent review.

If you happen to have the part number for the upgraded hose replacement, would appreciate it.