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View Full Version : no oil pressure to cams, but oil pressure to head


allenms240
10-13-2012, 01:30 PM
Another problem, my oil squirters for the cams arent spitting out oil. I blew air through them and they aren't clogged. I pulled off the valve cover and had my buddy crank the motor while I watched them, oil spewed all over the back of the engine where the oil squirters bolt down too, but no oil THROUGH them.
My question is, is there some sort of banjo bolt you're supposed to use with these? Because if the squirter gets oil from that bolt, aren't we 'plugging' that hold up by bolting down the cam cap? I assume I have the right bolts because they are slighter taller than the rest to compensate for the size of the banjo on the squirters. I think this might have always been a problem, I just didn't notice it until now.

So, why is oil spewing out of the place where the oil squirter is bolted, and not letting oil through the actual feed?

jr_ss
10-13-2012, 02:55 PM
I believe the bolt for the cam cap has an undersized shank that allows oil to flow up and around it into the "banjo". When you tighten that bolt down it should seal oil from "spewing" out and force it through the squirting rod. I can't recall if there is two washers for that "banjo" fitting or not, but make sure it's torqued correctly and making the "banjo" tight to the cam cap. If not, find a washer in there to take up the slack. Remember, fluids and air travel in the path of least resistance. If there is a way out, it'll find it.

allenms240
10-14-2012, 10:42 PM
Thanks for the reply. I had the wrong bearing cap on. On the correct cap, there is a hole to let the oil flow through and up to the banjo.

Kingtal0n
10-19-2012, 02:53 PM
Just a word of caution, did you note the size of the holes in the camshaft oil tube? Not very large are they?

They clog easily. When your valvecover is off, and you lean over the engine and drop a bit of (random insignificant junk) into the engine, that could wind up clogging one of those tiny holes and it will wipe a cam lobe out and the engine will be ruined. Make sure everything is as clean as you can possible keep it.

cotbu
10-19-2012, 10:02 PM
Why\How does destroying a cam lobe equal a ruined engine? Just curious!
Normally what happens after a cam lobe dies is the noise from the lobe hitting the rocker, followed by the crazy clacking sound. So again, there's nothing you can do to save the engine, it's just done for?

jr_ss
10-20-2012, 07:31 AM
I think it was a little bit of an over exaggeration in his part.

cotbu
10-20-2012, 09:54 AM
Sometime we have to check the fact checkers!

Kingtal0n
10-20-2012, 11:52 AM
Why\How does destroying a cam lobe equal a ruined engine? Just curious!
Normally what happens after a cam lobe dies is the noise from the lobe hitting the rocker, followed by the crazy clacking sound. So again, there's nothing you can do to save the engine, it's just done for?

Where does the metal go? You think the oil filter catches all the metal particulate? You think that shiny glitter in the oil pan is not becoming part of the engine bearings?

You think that even if you pull the entire engine apart, hot tank and wash it, that you will get all of the metal out? If you've ever actually wiped out a cam lobe on an engine, and tried to "fix" it by replacing the camshaft/rocker, only to find one week later that it mysteriously happens again because some mysterious metal from "somewhere" clogged up another cam oil hole...

cotbu
10-20-2012, 12:14 PM
Wow Just wow!