Isx Cm871 Injector leak test

[Rawze]

(11-02-2024 )CM87183 Wrote:  ...
Hey Rawze,
I believe I have an injector that is leaking on the front half of my cm871, I get plenty of bubbles when cranking and the timing of it seems to be only one injector, but when I try and bar the engine over I can't get it to bubble. I've tried adding a smaller hose to try and make it bubble easier, but I just can't seem to get it to bubble while barring to verify what cylinder it is. Is there anything else I can try to identify what cylinder is leaking?

- I have had that happen a few times. Only thing you can do is crank the engine for a good 20+ seconds to get it leaking/bubbling real good, then jump out quickly and bar the engine right away .. and it will continue to leak. Its like you have to get it going/leaking good, then jump out and turn engine by hand right away after, like your trying to catch it before it goes away again.

- You can use 2 people to do this (someone to shove the wrench in right away after a good bit of cranking it, and start turning engine by hand) .. but you have to have enough trust in them not to leave/have the wrench in place when you use the starter to crank it/vice versa.