Went to start my SR20...didn't get any oil pressure

[5upra]

I was wondering if its a neccessity to pack the oil pump with petrolum jelly/vasoline? I have rebuilt a couple motors now and have never performed this step and they built oil pressure just fine. What are some tricks to get oil pressure built if any?

[rotorimp]

When I build a motor I use a 50/50 mix of motor oil and STP. Was the oil pump completely dry? Was the pickup secure? how ong have you cranked it? I have only used vasoline on my 13b but never on any of my other motors.

[exode]

The biggest problem is the oil pan. One small dent right in the center made it so my motor got ZERO oil pressure. Make sure the pickup is clean, and just keep doing dry cranks until you see that light go off.

Another trick is to clamp off your valve cover breather lines and have someone stick an air compressor in the dipstick tube while you crank the motor over. These oil pumps get frozen all the time, rarely do they go bad. Just fiddle around with it =)

[5upra]

sorry its been awhile, but I put some assembly lube on the gear set and regulator so I wouldn't think its stuck...I have run the battery down to almost nothing with dry cranks even tried the compressor thing......still nothing. I would think if I dropped the oil pan I could shoot some vasoline up the pick up...do you think that would help at all?

[NCturbo75]

Just wondering....why do people use petroleum jelly instead of the proper lube material when they are "rebuilding" a motor?

[5upra]

Its only for the oil pump(motor oil would just run out)...not to assemble the engine with.

[rogoman]

sorry its been awhile, but I put some assembly lube on the gear set and regulator so I wouldn't think its stuck...I have run the battery down to almost nothing with dry cranks even tried the compressor thing......still nothing. I would think if I dropped the oil pan I could shoot some vasoline up the pick up...do you think that would help at all?

Remove the oil pressure sensor and connect a line to a hand pump that can draw motor oil from a can. With the hand pump all the oil galleries and the oil pump will get pre-oiled.

Don't use vasoline at all anywhere in the motor. A good moly based assembly lube is your best bet.

[5upra]

interesting...I talked to one of my old auto instructors and he said the same. but what kind of pump are we talking about here?Like this http://www.sears.com/sr/javasr...5000 or this http://www.sears.com/sr/javasr...77000

[NCturbo75]

Its only for the oil pump(motor oil would just run out)...not to assemble the engine with.

I actually heard of this one guy in Hickory that used that when he assembled his motor. Maybe that's why his motors are always runny crappy. Another bad thing about it is that the guy never admits defeat. Always whining and giving lame excuses when his car or his buddy's car loses in a race.

[5upra]

I actually heard of this one guy in Hickory that used that when he assembled his motor. Maybe that's why his motors are always runny crappy. Another bad thing about it is that the guy never admits defeat. Always whining and giving lame excuses when his car or his buddy's car loses in a race.

yeah...don't follow his foot steps.

[NCturbo75]

yeah...don't follow his foot steps.

hahhaha...trust me, I most certainly won't. I don't really like the guy anways. He is just a retard who loves to talk shiet.

[180fan]

I suggest redline assembly lube.

Now with that said, have you tried pulling the fuse on your fuel pump and disconnecting the cas then cranking the motor till the oil light goes away?

[rotorimp]

I have used Red Line, BG, 50/50 mix of STP and motor oil--they have all worked well. The idea is to get something that will stay on till oil pressure is built and normal oiling takes over. If you cranked it that long and you still have no pressure then I would start looking for a problem. Take off the filter and see if it is still dry-- then I would take the pan off and make sure that there is clearance between the pan and the pickup!! If you used assembly lube and the pump was in spec. then it should be moving oil!

[5upra]

yes I have tried priming the motor before start-up.

everything should be fine....the only thing I didn't check and don't recall-Is there a o-ring on the pick tube where it mounts to the pump? I know I didn't replace one so it might not be a good seat.

[574-240sx]

The biggest problem is the oil pan. One small dent right in the center made it so my motor got ZERO oil pressure. Make sure the pickup is clean, and just keep doing dry cranks until you see that light go off.

Another trick is to clamp off your valve cover breather lines and have someone stick an air compressor in the dipstick tube while you crank the motor over. These oil pumps get frozen all the time, rarely do they go bad. Just fiddle around with it =)

I was thinking the oil pan too.

[5upra]

well pulled off the pick-up tube and the only oil present is at the screen. It was obviously in the oil. But nothing up into the tube didn't even come to the seal on the pickup. I guess I will be ordering a pan and that seal. Now I think I will try to shoot some oil into the pump just for fun