CIH 695 fuel leak

Paul swpa · Jul 9, 2022

I've had this leak for awhile but it is getting worse so needs fixed ( especially with the price of diesel). It leaks from the T the injector return line connects to. One side is return line, another goes back to tank, the third (where it leaks) goes back to the top of injection pump. Looking at the online parts, there is a piece called cutting ring #3056136R1 which is changed to #190003559558 and called olive. since the leak appears to start here I was wondering if anyone has worked on such a connection and if I could replace just this ring and re-tighten the nut hopefully stopping the leak. How hard would it be to get this ring off the steel line without ruining the steel line? Thanks Paul

I tried to get this fitting loose a long time ago and couldn't get it to budge, so any help there would be appreciated too. I think I broke a couple open end wrenches before I gave up last time! Not an option now.

used red MN · Jul 9, 2022

Must be talking about number 32 in the attached diagram. No experience with your model but based on having worked on systems like this in the past the sleeve is just a rubber sleeve. I have even used a piece cut squarely with a razor blade out of the proper sized fuel resistant hose to replace them. The nut on the fitting was probably tighten down and bottomed out hard. Just get a wrench, good pliers or vise grip to hold the fitting and I am pretty sure the nut will come loose. Funny they call it an olive under the substitute part number, must be a British deal due to the tractors are UK built. Or maybe someone had a little to much focus on the martini they were going to have after work.
CNHI CIH 695 parts diagram

Paul swpa · Jul 9, 2022

Thanks RedMn, that's exactly what I was looking for. Yes, is part #32 in diagram. I Guess I never thought it could be a rubber piece! I was thinking of a metallic/copper ring. Paul

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Here is a couple pictures of the leaking fitting and where the tube ends on the injection pump.

CIH 695 fuel leak

Paul swpa

Member

used red MN

Well-known Member

Paul swpa

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