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new crate motor...UPDATE PG. 3...a little oil to valves/heads now!!!!

01maroonz71

01maroonz71

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well, i figured out the timing/ignition problem...but now under the valve covers is BONE DRY. they're not getting oil at all. but i have great pressure. so i pulled the oil filter and checked out that little screen thingy, and it had quite a bit of resistance on it(had to push with screwdriver). could that be bad/clogged???? and would that cause the valves to not get oil???? thanks!
~Dave
 
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Well the rockers get oil theat is forced into the lifters then forced from there into the pushrods. Are your lifters functioning properly?
 
yeah, i can see them moving up and down. this motor is brand new from the local dealership, i only pulled the valve covers off to check out inside. shouldn't it be right from the factory. when i primed the motor for like 15-20 minutes with the priming tool i figured it didn't see it in there b/c of the lube used when assembling the engine. i could have been wrong though.
 
You must have a distributor installed in order to get oil to the rockers. If there is no distributor installed the oil will dump back into the crankcase because the distributor blocks a passage and allows the oil to be pumped through the lifters, pushrods, then the rocker arms.

EDIT: Not all priming tools are made correctly for this to happen as well.
 
well, my distributor is in now...and im not getting oil up there...and my primer tood did have the bushing on the shaft to block that. something else is stopping it. again, the motor is in, and i can fire it up, and run it with no oil traveling to the heads.
 
Have you started it and loosened the rocker arm nuts a turn or two? Just to see if the pushrod holes are covered.
 
am i supposed to mess with anything under the valve cover on a new crate motor...that makes me nervous, but ill do what i need to. i can see the pushrods coming up and down....but can't see under the intake obviously...how can i see the pushrod holes???
 
I would not touch anything other than the phone to the dealer you bought the engine from and explain to him what's going on and what they want you to do next. Once you start messing with things then you lose the warranty.
 
4X4HIGH said:
I would not touch anything other than the phone to the dealer you bought the engine from and explain to him what's going on and what they want you to do next. Once you start messing with things then you lose the warranty.
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x2.. call the dealer and explain the situation to them first.. see what they have to say.
 
01maroonz71 said:
well, i figured out the timing/ignition problem...but now under the valve covers is BONE DRY. they're not getting oil at all. but i have great pressure. so i pulled the oil filter and checked out that little screen thingy, and it had quite a bit of resistance on it(had to push with screwdriver). could that be bad/clogged???? and would that cause the valves to not get oil???? thanks!
~Dave
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How long did you spin the prelube tool for and at what speed? It sometimes takes quite a while (like 10 minutes) using a good electric drill to get oil to start coming out of the pushrods. Sometimes rotating the motor a little helps also.

The guage will show good pressure really quick, but getting oil out of the pushrods takes a while.
 
well, i spun it at pretty much full throttle(with a corded bad@ss drill, high RPM"s) and i had my buddy turn the motor over by hand 4 full revolutions while i was priming it. i primed the motor for ATLEAST 15 minutes for sure. prolly closer to 20 or 25 to be honest. i will try calling the dealership i geuss and see what they say.
 
dealership said i have to pay to have it diagnosed, then they will replace parts, but not labor yada yada yada....so, anybody have any more ideas??? what if the blockdoesn't have the castings in block for oil to come up to the oil valley?????

or is it possible that oil hasn't traveled that far yet even though the oil has been primed with the tool???? i ran it for 5minutes, should i run it some more and see what happens????

i mean, what COULD it be??? there are only a couple options...

oil pump, but i have pressure....60at idle

no passages cast into block(possible, but not likely)

what about the screen by the filter, could that be stuck, not letting oil trhough?????
 
What oil do you have in it and how long did you run it and at what rpm's?
 
Hmm, I have seen a hotrod build on TV where they were running into the same situation as you. Turned out the oil pick up was flush against the pan and wasn't able to suck oil up. Adjusted the pick up screen and all was fine. Now- I don't know if oil pressure registered on the gauge or not. Something to look into no matter. Let us know. Did you weld the oil pick up to the pump?
 
the oil pump/pickup was all prebuilt by GM....it was a longblcok so i looked/took apart nothing at all. im running valvoline 10w-30 oil(4qts) and a fram tough grip filter and i idled it at 500 for 5min. but before that i primed it at full speed of drill for like 20-30min.(craftsman drill).....im stuck guys!
 
OK maybe they didn't adjust it right, maybe it fell off in the pan, you are certain the priming tool was engaged in the pump? I don't think it'd hurt anything to pull the pan and have a looksy. Take a measurement of the pick up compared to the bottom of the pan. Graspin at straws here.
 
1 - minimum oil in a sb is usually 5 qrts.. you want to prefill the filter, which btw, Fram's are garbage..

2 - break-ins on fresh motors are generally between 1500 and 2000 rpm's, best if varied in that area... idleing a fresh motor is a bad thing..

couple gooses of the throttle would probably get oil thru the valvetrain..
 
ryoken said:
1 - minimum oil in a sb is usually 5 qrts.. you want to prefill the filter, which btw, Fram's are garbage..

2 - break-ins on fresh motors are generally between 1500 and 2000 rpm's, best if varied in that area... idleing a fresh motor is a bad thing..

couple gooses of the throttle would probably get oil thru the valvetrain..
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when i fired up my freshly rebuilt engine in my truck. there was no oil in the top. that worried me. but my dad say to keep it revving at 1,300 rpms so i left it running at that range and left. forgot abt it abt 20 mins later. oh chit. went back to the truck. checked to make sure its alright, finally oil in the topend. so its probably gonna take a while. try that first and see what happens. if nothing.. drop the oil pan n check it out add one more quart of oil
 
At this point, If I where him, I'd just pour 1/2 a qrt over each bank of rockers, close up, refire and run at normal varied break-in rpms...
 
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