D4 7U Questions

Showing 1 to 2 of 2 results

Old Cats

Topic Author

Offline

Member

Send a private message to Old Cats

Posts: 103

Thank you received: 0

Hi All,
Working on D4 7U serial number 9081.
Got the D4 engine together and started it up but it has a miss in the #2 cylinder. That is the one that got the new piston and sleeve. The machine had not been run in quite awhile so I did bleed all the filters, pumps and injectors. When I crack the injector nuts on all the other cylinders they begin to noticably miss. When I crack the nut on #2 there is no change and I seem to get more fuel splurting back than on the others. The exhaust manifold is hot when running on 1,3and 4 but 2 is cool. I will recheck the valve clearance. I have swapped #2 and #3 injectors with no change. Any help would be appreciated.

Thanks
Gene

Please log in or create an account to join the conversation.

Mon, Nov 7, 2011 7:55 AM

Old Magnet

Offline

Send a private message to Old Magnet

Posts: 16,694

Thank you received: 16

Try swapping an injector pump. Every once in awhile they come up faulty.

Please log in or create an account to join the conversation.

Mon, Nov 7, 2011 8:11 AM

Old Cats

Topic Author

Offline

Member

Send a private message to Old Cats

Posts: 103

Thank you received: 0

Reply to Old Magnet:

Try swapping an injector pump. Every once in awhile they come up faulty.

I will try that. Thanks for the suggestion OM

Please log in or create an account to join the conversation.

Mon, Nov 7, 2011 8:21 AM

Showing 1 to 2 of 2 results

Follow Us on Social Media

Our channel highlights machines from the earliest Holt and Best track-type tractors, equipment from the start of Caterpillar in 1925, up to units built in the mid-1960s.