Ford Bronco Zone Early Bronco Classic FullSize Broncos: oilpump siezed - Ford Bronco Zone Early Bronco Classic FullSize Broncos

Page 1 of 1

You cannot start a new topic
Add Reply

oilpump siezed

#1 chris C

Bronco Newbie

Group: Members
Posts: 1
Joined: 26-March 09

Posted 26 March 2009 - 01:20 PM

I have a 79 Bronco with a 400 .The oil pump locked up and it sheared the oil pump drive shaft. I replaced them both fired her up but no oil pressure and timing seemed off .Is it possible that my distributor is damaged and causing this?

Back to top of the page up there ^
MultiQuote
Reply

#2 American Thunder

Bronco Mechanic

Group: Members
Posts: 75
Joined: 11-June 08
Gender:Male
Location:Upstate New York
Interests:Ford trucks and cars, diesels, battleships, guns

Posted 26 March 2009 - 01:39 PM

I'd pull the distributor and check it. Maybe the hex corners where it engages the pump shaft rounded off when the pump seized, or maybe it cracked. As for the timing, the only thing I can think of is the timing chain may be really worn, and the seize caused it to jump a tooth. If there are plastic teeth on the timing set, they may be damaged, too.

This post has been edited by American Thunder: 26 March 2009 - 01:44 PM

* 1983 Bronco - '95 300 converted to carb with '95 5-speed, 3.55s, 9" rear
* 1978 Bronco - Newly acquired project truck - soon to be 5.9L Cummins powered.
* 1996 EB Bronco - 5.8L auto, 160k miles- The wife's truck.
* 1977 Mustang II - 530hp 332" stroker motor, C4 "mighty mite", 3.10s in a 9" detroit locker