XSive pressure?

[Winterhawk]

What do you think would cause an oil filter housing to push away and let the O-ring slip past and puke oil all over?

After cleaning it I found stress cracks on the inside around the hole. After starting it I saw the housing actually move downward and the o-ring push out almost getting a face full of oil....LOL

All I did was install a new Cometic head gasket on a 1200 kit. Rode it 50 miles and the next day started it and this happened. Going to try another housing and hope for the best.

[strom]

Maybe a previous blow on the housing...

My engine is pretty banged up. Bout an inch missing/refabricated on the bottom right side, the side cover must be a replacement. Some fins missing/reattached on the head... probbably due to idiot dissasembler wannabe. Oil filter housing was OK, but last time I changed the filter, one of the fins stayed in my hand. But IMHO, its probbably the bolt.

LP

[Winterhawk]

Update. I removed the filter housing on my bike to try on his. It popped and the housing broke as soon as it fired up. I think maybe the pressure relief is sticking closed in the oil pump.

I also found a pea size rock and a broken gear pawl in the oil pan. Wonder if something could stick the relief valve closed. It must have made 1000psi or something to blow off the housing.

Now my bike is broke untill I get a housing.

[GNEPIG]

.. ok, since you sound like a smart guy, i'm going to go with the relief valve plunger or spring malfunctioning inside the oil pump. the spring tension is what regulates the pressure.. you said that all this started after you replaced the head gasket, since sh!t happens, to err is human and all that crap, i would also check to see if there is an obstruction at the banjo bolts or oil line, i would remove the steel oil line and useing compressed air make sure it is not blocked and the banjo bolts also. with the oil filter housing off, apply air pressure to the hole that the filter bolt screws into and watch for air and oil to shoot out of the hole that the bottom of the oil line bolted to. there might be a check ball in this passage so you might not get flow both directions. if you remove the valve cover, you can apply air pressure at the back of the head where the top of the oil line goes and watch oil and air bubble out from around the cam bearings
..if you find parts in the oil pan this problem may have started another problem
.. i hope this helps

[TopCatGr58]

I'm with GNEPIG in thinking that you've got an obstruction in the oil channels, but I doubt that it's the oil filter bolt, cause it has passage holes both above the check ball where the oil is supposed to get thru from the filter, but also below the ball for incase of a totally blocked filter.

The oil flows from the pump, thru that access hole in the side of the filter chamber, then thru the filter, and into the bolt, and up into the engine. From there it gets split off thru both the crank bearings, as well as that pipe to the head. After re-reviewing the oil flow diagram, it looks like there is a check ball just above the opening where the filter bolt screws into!? The supply line to the crank is smaller than the one to the other gears and top end.

Broken pieces and gravel in the oil pan is not a good sign Sounds like you may be in for a complete teardown? Good Luck.
T.C.

[andreashweiss]

Never heard that problem before. I have the oil filter cup and bolt,also have a oil pump I am assuming you do not need the entire bottom engine case but I have that as well. I do not have the oil pump gear and shaft that that turns the oil pump gear (unless I pull it out of my last unassembled motor) Let me know if you need something. andreashweiss@yahoo.com

[Winterhawk]

Thanks for the replies. I think I'll put a hand pump oiler where the oild pump is and see if it comes out at the camshafts.

Has anybody seen this happen before? Talked to Bob Jones and even he's says that he never heard of it happening before.

All I did to the bike was a valve job and a new head gasket. The bike was ridden for 50 miles with no problems. It has 75,000 on it and a fresh top end. When the owner went to start it 2 days later this happened.

[Winterhawk]

Took apart the oil pump and found the relief valve sticking.

[TopCatGr58]

Under Pressure!

Well, that's amazing and interesting to find out that the pump can generate that much pressure! Curious to find out WHY the valve got stuck? How about taking some photos and making a Tech Tip for the Oil maintainance section, we don't have one there!!
T.C.

[Winterhawk]

The owner is a Chemical plant piping engineer. He said a pump like this can be used in hydraulics and develop huge amounts of pressure. Not sure how much but if the o-ring wouldn't of popped out the housing would of probably exploded in my face.

I didn't take pictures because I already emery clothed and scotch brite the plunger and the oil pump housing. Now it moves smoothly and freely. Next Saturday I'll run back up there
(60 mile trip) to put it back together for him.

[Glarusguy]

Popping filters

I had a 49 international once that I put a 350 in. It ran fine all the time even though as a project was never really together. Anyway, I had to move it to another storage place about 4 to 5 miles down the road. Drove there real fast cuz there were only manifolds on the exhaust. When I got back to were it was stored before there was this huge oil slick and a trail that rapidly diminished in the direction I drove. Seems the relief valve had stuck in there as well. Took a couple of filters literally exploding until I figured it out.

[mro]

Extra Parts

"I also found a pea size rock and a broken gear pawl in the oil pan"


Curious where they came from


mro