Smoky

hmong supra · 08-07-2011, 12:12 AM

One day I wus driving my mk3 supra and all of sudden white smoke started to appear from my muffler. At first I though it wus the head gasket so I replace that but it still smoke. So I replace the stock standard turbo with a new ct26 but it still smokes. There wus no crack on the block or what so ever. Does anybody know. maybe its my piston ring or some what. Because the smoke has a sweet like smell and I notice that my coolant drains and begain to overheat. Any suggestion.

El Supracabras · 08-07-2011, 02:26 PM

Quote:

Originally Posted by hmong supra

Because the smoke has a sweet like smell and I notice that my coolant drains and begain to overheat. Any suggestion.

Well, no doubt then that it is coolant. If you did have a bad head gasket or turbo, you could be burning whatever coolant it left in the exhaust. It can sometimes take awhile to burn off. Other possible (but unlikely) points that coolant can enter the combustion chambers are throttle body and the IAC valve. Have you done a compression test since the new HG?

MA70-3.0GT · 08-07-2011, 03:31 PM

Did you follow the correct "burping" procedure when filling the coolant? if you havent done many miles it could just be a combination of coolant in exhaust burning off as stated above, and airlocks in the system (can be serious so make damn sure it is burped).

However i'd suggest the compression test as a matter of course and then only if the comps check out maybe just ensure it really is burped (can't stress enough GET RID of airlocks before use) and run it a while to see if the steam & coolant level dropping stops

Otherwise, if compressions are out then Houston we have a problem (these lumps are one of the most sensitive I've known to having the job done properly, dead flat head/block decks, perfectly clean from previous HG, cleaned out bolt holes & ideally new bolts lubed up before fitting & torquing to 75lb NOT 58lb, good quality gasket used etc)

hmong supra · 08-08-2011, 02:21 AM

Ok ill go and to that and see if thats the case but thanks you guys

hmong supra · 08-11-2011, 07:11 AM

Ok..i did what you guys told me to accept I did do the compression test yet cus I dont have one. But any way it still smoke. Specelly when I put new oil in it. It tends to be lot more smoke. Could it be the piston ring or something else.

cre · 08-11-2011, 07:17 AM

Are the oil or coolant contaminated?

hmong supra · 08-11-2011, 02:29 PM

Well....i give up...geuse im going to swap it out with another motor. That will stress less for me

08-07-2011, 12:12 AM	#1
hmong supra Stock Join Date: Aug 2010 Location: guthrie center Posts: 5	Smoky One day I wus driving my mk3 supra and all of sudden white smoke started to appear from my muffler. At first I though it wus the head gasket so I replace that but it still smoke. So I replace the stock standard turbo with a new ct26 but it still smokes. There wus no crack on the block or what so ever. Does anybody know. maybe its my piston ring or some what. Because the smoke has a sweet like smell and I notice that my coolant drains and begain to overheat. Any suggestion.

08-07-2011, 03:31 PM	#3
MA70-3.0GT 12psi boost Join Date: Oct 2009 Location: Crewe, England Posts: 356	Did you follow the correct "burping" procedure when filling the coolant? if you havent done many miles it could just be a combination of coolant in exhaust burning off as stated above, and airlocks in the system (can be serious so make damn sure it is burped). However i'd suggest the compression test as a matter of course and then only if the comps check out maybe just ensure it really is burped (can't stress enough GET RID of airlocks before use) and run it a while to see if the steam & coolant level dropping stops Otherwise, if compressions are out then Houston we have a problem (these lumps are one of the most sensitive I've known to having the job done properly, dead flat head/block decks, perfectly clean from previous HG, cleaned out bolt holes & ideally new bolts lubed up before fitting & torquing to 75lb NOT 58lb, good quality gasket used etc) __________________ '89 MA70 Supra GT aero 3.0turbo JDM, Rebuilt motor, K&N intake, 3" stainless turbo-back. New turbo and braided line kit... '89 Honda NC27 400, NC23 cams, open pipe, PC36a shock & possibly Showa USD forks... '83 Yamaha 29R XJ750E-II, number 69 off the line, only runner in the country? Original except Koni shocks '95 Honda PC26 CB500R, Winter hack, hateful, trying to sell it I'm not paranoid, they really ARE after me!!! Last edited by MA70-3.0GT; 08-07-2011 at 03:36 PM.

08-11-2011, 07:17 AM	#6
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Are the oil or coolant contaminated? __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

08-08-2011, 02:21 AM	#4
hmong supra Stock Join Date: Aug 2010 Location: guthrie center Posts: 5	Ok ill go and to that and see if thats the case but thanks you guys

08-11-2011, 07:11 AM	#5
hmong supra Stock Join Date: Aug 2010 Location: guthrie center Posts: 5	Ok..i did what you guys told me to accept I did do the compression test yet cus I dont have one. But any way it still smoke. Specelly when I put new oil in it. It tends to be lot more smoke. Could it be the piston ring or something else.

08-11-2011, 02:29 PM	#7
hmong supra Stock Join Date: Aug 2010 Location: guthrie center Posts: 5	Well....i give up...geuse im going to swap it out with another motor. That will stress less for me