george.bryant Posted March 2, 2006 Share Posted March 2, 2006 I've just reassembled my motor. It runs pretty well. But on boost it doesnt feel like its really boosting as what the reading on the gauge is, feels like half of it. WHen urve gone for one quick boost, and then turn the motor off. There is smoke coming out from underneath the inlet manifold. During the reinstallation of the manifolds the 1st exhaust stud broke and I have no repaired it yet. Could this be the soruce of the smoke and lack of boost feeling? Regards, George Quote Link to comment Share on other sites More sharing options...
AK-Z Posted March 2, 2006 Share Posted March 2, 2006 I would say so, but not to sure with out looking at it. Edit: I keep forget the most important details right after I read it. lol "Reassembled motor" Quote Link to comment Share on other sites More sharing options...
Thumper Posted March 2, 2006 Share Posted March 2, 2006 Smoking after you first put the engine together is normal. Your finger oil, cleaner, and even gaskets will smoke for the first few times your car is warmed up. It should get better each time you start it though. If you are getting a good boost reading and its going up there as quickly as should then you system is sealed. So more than likely its ignition timing, miss, or fuel problem. Quote Link to comment Share on other sites More sharing options...
george.bryant Posted March 2, 2006 Author Share Posted March 2, 2006 Yeah I kinda spilt oil on the turbo. but thats all burnt off now. If it doesnt go away what should I do? How do i check Ignition timing (is that dizzy timing? If so its set to 20 degrees). Fuel problem...i dont think so. Quote Link to comment Share on other sites More sharing options...
Thumper Posted March 2, 2006 Share Posted March 2, 2006 You can check the timing with a timing light. Basically it senses when the no.1 cylinder is fired and emits a light at that time. You then check where the mark on the crank pulley is lined up at when the light comes on. If you are running the stock ecu 81-82 then its 20 degrees if you are running a 83 then its 24. It could also be a miss. Check cap, rotor, wires, spark plugs, and coil. EDIT* I just read your sig looks like you are running an l20 and I don't know what the stock timing is on that. And yes dizzy timing and ignition timing is the same. Quote Link to comment Share on other sites More sharing options...
george.bryant Posted March 2, 2006 Author Share Posted March 2, 2006 Yeah i checked with a timing light. Infact when i put the motor back together and ran it it was still spot on 20. On the sticker under the bonnet it says 20 BDC @ 650 RPM. Cap, wires, plugs and coil are new. Rotor is ok. I'm thinking maybe spark plug gap? Quote Link to comment Share on other sites More sharing options...
george.bryant Posted March 3, 2006 Author Share Posted March 3, 2006 Any more suggestions??? Quote Link to comment Share on other sites More sharing options...
olie05 Posted March 3, 2006 Share Posted March 3, 2006 add 800cc's Quote Link to comment Share on other sites More sharing options...
george.bryant Posted March 3, 2006 Author Share Posted March 3, 2006 donate me a l28 head? Quote Link to comment Share on other sites More sharing options...
george.bryant Posted March 4, 2006 Author Share Posted March 4, 2006 Ai'ight, i got a feeling its the heat wrapping i used...Will be whipping off da inlet 2mrw to check it out Quote Link to comment Share on other sites More sharing options...
big-phil Posted March 4, 2006 Share Posted March 4, 2006 I had a intake exhaust gasket that was leaking, after I put a new one on it felt like it would boost better. But I could hear it leaking. Quote Link to comment Share on other sites More sharing options...
george.bryant Posted March 4, 2006 Author Share Posted March 4, 2006 Yeha i can hear it leaking!! I'm going to get it off now its frustrating! Quote Link to comment Share on other sites More sharing options...
george.bryant Posted March 5, 2006 Author Share Posted March 5, 2006 well it turns out its fumes leaking from the turbo or somehting around that area i dont know what to do... Quote Link to comment Share on other sites More sharing options...
AK-Z Posted March 5, 2006 Share Posted March 5, 2006 Then I think its that broken exhaust stud you mentioned earllier. I haven't had a opportunity to try to get one out of a alluminum head before so I don't know how to get one out. I'm sure someone will post or link how to. Quote Link to comment Share on other sites More sharing options...
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