I just had my engine rebuilt and after approx 150 miles my adjusting screws on the right side of my engine come loose. I have already broke 3 push rods on that side and the knocking it produces sucks also. So do I need new adjusting screws? Or do I need new rocker arms? Also, every time I pull the valve cover off on the right side it is real gummy and black, and the push rods look dry. On the other hand The left side looks great. The oil looks great, everything is lubed up and adjusting screws never come loose. So whats going on on the left side?

Maybelle lee

I would be have a strong word  with the guy that rebuilt the motor .Find out what he did to "Rebuild " your motor ????.Or was it a re-ring & bearings and  a can of spray paint ??? If you remove the rockers that are not getting oil ,crank over motor ,& oil appears from oil hole in head ,you may just have clogged ( or incorrectly installed ) rocker shaft.If no oil appears from oil hole you may have a spun cam bearing ???? Broken push rods don't sound real healthy as well ??? I can't say what I would do to the guy that rebuilt your motor ,there maybe children listening .Good luck .

Lon

yblocksdownunder

sumthin' ain't right.. broken push rods ??!!!



"Came too close to dying to stop living now!"

Monkeyboots80;

As Lon mentioned, your problem could very well be a rocker shaft installed incorrectly. The center hole in the rocker shaft must be aligned with the hole in the center rocker stand. If you are getting plenty of oil to one head but not the other, I wouldn't think it would be a problem with the cam bearing.

Rono

  Ron Lane,  Meridian, ID

Chances are if the cam was replaced the groove in the center journal is not deep enough.  This is a recurring problem and your symptoms match it exactly.

http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

so as far as trouble shooting... what would be my first logical step? If that dosn't help what would be next? Thanks for all your help!!

Maybelle lee

1st step probably will to be remove the rocker assembly on the bad side & check to see if the shaft is installed incorrectly. Unfortunately, if they have been running dry they likely need some reconditioning anyway. Was the work done a complete rebuild inclulding a new Cam? If so, and the rocker shaft assembly is correct, than John Mummert's advice is likely next..

Paul

[quote][b]LON (5/31/2011) If no oil appears from oil hole you may have a spun cam bearing....



Or (not unheard of), the guy just forgot to clean out the plugged oil passage in that head. Sometimes the sludge is so bad in poorly maintained motors they have to be drilled out.

6 VOLTS/POS. GRD. NW INDIANA

I saw this happen on a F-100 272 engine. The guy asked me to adjust the valves, and one side was dry.

The problem was the passage in the head, that was clogged. If it's the "passenger" side of the engine that's running dry, you may have a problem at the timming chain also, because there is little to no oil going there. If it's the "driver" side, your cam/distributor gear can be starving oil.

Never a good thing tough.

The broken pushrods are very strange, never saw that happen. I saw bent pushruds, but never broken.

Túlio Lazzaroni "FORD", Florianópolis SC Brasil.

'74 Ford Galaxie 500 292 V8

'82 Ford Galaxie Landau 302 V8

'98 Chevrolet S10 4.3 V6

'01 Ford Focus 1.8 Zetec

As far as the push rods breaking... They are breaking at the mushroom tip. And they are original. So as soon as I get a day off Im gonna remove the rocker assembly and see if it was installed correctly...then I will go from there. Stay tuned and thanks again for all your help.

Maybelle lee