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6 bolt swap problems

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Gesex

Probationary Member
17
0
Nov 29, 2002
swapped a 6 bolt into a 97. when we first tried to start the car, it started but no oil pressure, and oil wasnt getting to the head. we cranked it over a few times with the mpi fuse out before we fired it up to prime the oil pump a bit. pulled off the oil feed line to the turbo and used a vacuum pump to get some oil into it. fired the car up again with the bolt out of the head that people normally run a oil feed line from (front left corner), and it started blowing oil from that hole, but the gauge was still showing veryy low oil pressure. i could have a bad sending unit or something, but as long as the oil is getting to the head i think im fine.
mods to the oil supply was a 90 oil filter housing, and external oil cooler. cant remember the size of the oil cooler, but it wasnt huge.
problem is now that when we start the car, white smoke just barrels out of the exhaust bad. the engine has 0 miles on it, it wasnt a swap right from one car to another. only thing ive been told so far was that since i initially started the car with 650cc injectors, i could have ####ed the cylinder walls, and this is causing the oil to get by. thanks in advance for any advice/info.
 
When I built my motor, I put a drill on the oil pump sprocket before I put the timing belt on and pressurized the whole system to make sure oil got everywhere before I started cranking it. I have an aftermarket oil pressure gauge, but the first time I started the motor, it had good pressure from the moment I cranked it over.

A new motor will probably kick out a bit of smoke for awhile. It takes a bit for all the assembly crud to burn up and for the gaskets to settle. Also, white smoke is not oil burning, white smoke is water burning. Once the car warms up to temp the first time, it should not be smoking anymore.
 
^what he said.
White smoke is water, light blue grey oil.

All fresh engines smoke for about a week or so or varing degrees.

I am now installing my engine, and plan on taking the drill method with the valve cover off untill I see a steady supply coming out.
 
First White smoke out the tail pipe equals water or antifreeze entering the system somewhere and being burned or turned into steam if you will. Some of the more common places for this to occur are, head gasket, cracked head or block, warped head or block. If you are using a stock turbo, or a water cooled turbo there may be a crack or problem within the turbo center section. Coolant is also passed through the throttle body on a DSM (unless it has been bypassed)

Usually a quick compression check or leak down test will determine where the problem lies.

Have you pulled the oil drain plug to verify that water has not also been collecting in the oil pan?

Did you replace the head gasket? Were the head and block deck surfaces checked for straightness? Was a new head gasket used, and was it torqued properly? Have you rechecked the head bolt torque?

Black smoke would be an indicator that the fueling was too rich.
Blue smoke would indicate that excessive oil was being burned.
 
Big Woo said:
First White smoke out the tail pipe equals water or antifreeze entering the system somewhere and being burned or turned into steam if you will. Some of the more common places for this to occur are, head gasket, cracked head or block, warped head or block. If you are using a stock turbo, or a water cooled turbo there may be a crack or problem within the turbo center section. Coolant is also passed through the throttle body on a DSM (unless it has been bypassed)

Usually a quick compression check or leak down test will determine where the problem lies.

Have you pulled the oil drain plug to verify that water has not also been collecting in the oil pan?

Did you replace the head gasket? Were the head and block deck surfaces checked for straightness? Was a new head gasket used, and was it torqued properly? Have you rechecked the head bolt torque?

Black smoke would be an indicator that the fueling was too rich.
Blue smoke would indicate that excessive oil was being burned.
it is also a new rebuild. And it takes a few heat cycles (sp?) for the head gasket to seat/seal propperly.
Being that is a fresh rebuild, I would not worry too much about it unless it does not clear up in a few days.
Just keep an eye on the oil level, and condition. As well as the coolant level/condition.
 
Well I can't say that I have ever had a new engine billow white smoke for more then a couple of seconds after the initial start-up.

Just in case someone is wondering, or was planning on asking I have personally built and assembled 500 plus engines in the past 24 years of business.

Of course I suppose mother nature, or someone could have filled the exhaust system with water, either while the car was sitting (if it was outside and uncovered). I would disagree that it is best to play the wait and see game, and hope nothing bad happens. I would prefer to take a more proactive approach and do a few quick checks to prove wether or not a problem ex hists.
 
Big Woo said:
Well I can't say that I have ever had a new engine billow white smoke for more then a couple of seconds after the initial start-up.

Just in case someone is wondering, or was planning on asking I have personally built and assembled 500 plus engines in the past 24 years of business.

Of course I suppose mother nature, or someone could have filled the exhaust system with water, either while the car was sitting (if it was outside and uncovered). I would disagree that it is best to play the wait and see game, and hope nothing bad happens. I would prefer to take a more proactive approach and do a few quick checks to prove wether or not a problem ex hists.
I have rebuilt/built a few engines in my day too.
Most if not all have spent the first day or two blowing some sort of smoke while the gaskets and internal parts initially seated.

(got confused and thought I already said this in this thread, but it was another)
Check the oil every day for coolant, and coolant for oil.
Also keep an eye on oil and coolant consumption. (the engine WILL burn off oil for the first 4-600 miles - That is normal) Usually about a quart or so
To quell some worries run a coolant system pressure test.

If everything checks out it is just rings, gaskets settling and more then likely nothing to worry about.
 
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