Super TECH questions...lol - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jononioo · 04-30-2005, 11:20 AM

If there is a leak in the gasket between the water pump and the engine block.... will the leak cause white smoke to come out of my exhaust?

Andrew Bohan · 04-30-2005, 11:41 AM

no. you have a leak letting water into a combustion chamber. usually it's a blown head gasket.

jononioo · 04-30-2005, 12:25 PM

Quote:

Originally Posted by i'm driftaholic

no. you have a leak letting water into a combustion chamber. usually it's a blown head gasket.

well, ive been having trouble with alot of white exhaust smoke coming outa my car espically if my car has been idling for a while (@ a red light). At first i thought my injectors/fuel filter were fucking up. Then i posted about it on zilvia about 2 weeks ago. Everyone here said to check my compression. i checked it and it was 189-193 across all 4 cylinders. Then somone suggested that my valve seals were bad. But i don't think its my valve seal. I think it has somthing to do with coolant b/c my radiator will not stay full. It always leaks out somwhere around the water pump. My car never overheats, but it only take like 1 min to reach operating temp.

....so im thinking about draning my coolant and letting my car idle for a very short amount of time and seeing if i still get any smoke. I just hope this shit dosent warp my head

mjjstang · 04-30-2005, 12:47 PM

draining your coolant and then letting it run for a short time wont do much, there will still be some in there, even the smallest bit will give you smoke, of course only if that is your problem, I put a little sea foam in there and it smoked for like half hour, so dont think that will work for you, but as far as why its doing this, I dont know sorry.

***S14DB*** · 04-30-2005, 01:07 PM

Like a white cloud out your tail pipe or some trace smoke?

If it's a poofy cloud I would bet it's the HG. It's got a crack that you only get blow-by when the system get's upto pressure. I wouldn't run it without water. It's to easy to warp the head.

If it's grey/white stream of smoke I would say oil. Which is fun to find.

How are your water/oil levels? Wait for the car to cool and check both. If ether are milky, you need a new HG.

jononioo · 04-30-2005, 06:35 PM

My water leve is still low (of corse) and my oil level was un godly high!!! ... so i drained it to the proper level and ran my car for about 10 mins. After 10mins i stomped the gas and got white/bluish smoke. But the smoke is not super blue...its about 97%white smoke and about 3%blue smoke.

04-30-2005, 11:20 AM	#1
jononioo Zilvia Member Join Date: Oct 2004 Location: ALabama Posts: 264 Trader Rating: (0) Feedback Score: 0 reviews	Super TECH questions...lol If there is a leak in the gasket between the water pump and the engine block.... will the leak cause white smoke to come out of my exhaust?

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04-30-2005, 11:41 AM	#2
Andrew Bohan Post Whore! Join Date: Apr 2003 Location: Location: Location Posts: 8,330 Trader Rating: (2) Feedback Score: 2 reviews	no. you have a leak letting water into a combustion chamber. usually it's a blown head gasket.

04-30-2005, 12:47 PM	#4
mjjstang Post Whore! Join Date: Apr 2003 Location: Michigan Posts: 2,654 Trader Rating: (5) Feedback Score: 5 reviews	draining your coolant and then letting it run for a short time wont do much, there will still be some in there, even the smallest bit will give you smoke, of course only if that is your problem, I put a little sea foam in there and it smoked for like half hour, so dont think that will work for you, but as far as why its doing this, I dont know sorry.

04-30-2005, 01:07 PM	#5
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 20,181 Trader Rating: (3) Feedback Score: 3 reviews	Like a white cloud out your tail pipe or some trace smoke? If it's a poofy cloud I would bet it's the HG. It's got a crack that you only get blow-by when the system get's upto pressure. I wouldn't run it without water. It's to easy to warp the head. If it's grey/white stream of smoke I would say oil. Which is fun to find. How are your water/oil levels? Wait for the car to cool and check both. If ether are milky, you need a new HG.

04-30-2005, 06:35 PM	#6
jononioo Zilvia Member Join Date: Oct 2004 Location: ALabama Posts: 264 Trader Rating: (0) Feedback Score: 0 reviews	My water leve is still low (of corse) and my oil level was un godly high!!! ... so i drained it to the proper level and ran my car for about 10 mins. After 10mins i stomped the gas and got white/bluish smoke. But the smoke is not super blue...its about 97%white smoke and about 3%blue smoke.