Jd 404 squeak while cranking May 12, 2021 04:24PM
Alright guys so I freshened up a 404 turbo john deere engine to go in my 4020 pulling tractor and I have a weird squeaking noise when I am cranking the engine over. It can only be heard with the valve cover off and cranking. I ball honed the liners as they were not scored or anything just wanted to get the glaze off. Installed new rings. The squeaking noise goes away if you cover the intake up and crank it over. Anyone know what I may have done wrong?
Think it could just be the rings on the fresh croshatching? The engine only have about 5 mins of runtime on the build. Think I should just send it and see what happens?



Edited 1 time(s). Last edit at 05/12/2021 04:25PM by BrandonTamme.
Reply Quote

Re: Jd 404 squeak while cranking May 13, 2021 01:30AM
Dry rocker arm.
Reply Quote

Re: Jd 404 squeak while cranking May 13, 2021 05:54AM
Check copper washer at the injector seat had a mack drive me crazy same symptoms . A little soapy water should tell the tell.
Reply Quote

Re: Jd 404 squeak while cranking May 13, 2021 08:28AM
If you only hear it when cranking you may be hearing the injectors squawking?? Do hear it with the fuel stop puller?? DW
Reply Quote

Re: Jd 404 squeak while cranking May 13, 2021 10:11AM
Tight valve guide? You didn't happen to put in oversize valves and they are rubbing on the sleeve?
Reply Quote

Newer Topic Older Topic

Author:

Your Email:


Subject:
Spam prevention:
Please, enter the code that you see below in the input field. This is for blocking bots that try to post this form automatically. If the code is hard to read, then just try to guess it right. If you enter the wrong code, a new image is created and you get another chance to enter it right.
Message:
Website Statistics
Global: Topics: 38,698, Posts: 229,797, Members: 3,329.
This forum: Topics: 37,081, Posts: 225,950.

Our newest member CBeard