*Updated* So why is my motor smoking?
10-08-2007, 03:45 PM
#1
0.5 BAR
Thread Starter
Join Date: Feb 2006
Posts: 169
*Updated* So why is my motor smoking?
hey guys, i recently put a d16z6 into my hb and lately ive been seeing a little puff when i take off. i rebuilt the motor with a new bore and rings however i did not replace valve seals. it only puffs when taking off right now. The wierd part is that it doesnt do it everytime. it started after i got it tuned, then i put a full exhaust on it. anyideas? Oh, and there is a plug in my turbo exhaust housing that used a old o2 sensor to plug it, would that make any difference? :P
*Update* last weekend i found a small exhaust leak near my wastegate, yesterday i welded up the crack and took it out for a drive. The power is back to normal but it still smokes. So today i picked up a o2 sensor plug to remove this old one wire o2 sensor from the turbo's exhuast housing. i replaced it and drove it to the bank. The car did not smoke at all really. Could this be the original cause?
*The car did smoke once when taking a left turn onto my street after putting into 2nd gear which i think is my oil drain getting temporally backed up ever see anything like that?
*Update* last weekend i found a small exhaust leak near my wastegate, yesterday i welded up the crack and took it out for a drive. The power is back to normal but it still smokes. So today i picked up a o2 sensor plug to remove this old one wire o2 sensor from the turbo's exhuast housing. i replaced it and drove it to the bank. The car did not smoke at all really. Could this be the original cause?
*The car did smoke once when taking a left turn onto my street after putting into 2nd gear which i think is my oil drain getting temporally backed up ever see anything like that?
10-09-2007, 10:33 AM
#3
0.5 BAR
Thread Starter
Join Date: Feb 2006
Posts: 169
Re: So why is my motor smoking?
well upon further inspection i realized that it is white smoke coming out of the exhaust. i checked my coolant overflow tank and it is low so i think i have a head gasket leak. when i built the motor i used a cometic gasket, i torqued it to spec following cometic's instructions however do i need to retorque after 1000 miles?
10-10-2007, 04:16 PM
#8
1.0 BAR
Join Date: May 2007
Posts: 230
Re: So why is my motor smoking?
Originally Posted by d15b7underpsi
arp supplied lube and their specs of 60 ft lbs
Pull the oil dipstick; is there coolant in there?
If so, I'd say a head gasket either isn't installed right/torqued.
Is the motor boosted? Have you given it a 500 mile break in period before beating on it?
Maybe came across some head lift?
10-10-2007, 08:10 PM
#9
0.5 BAR
Thread Starter
Join Date: Feb 2006
Posts: 169
Re: So why is my motor smoking?
no coolant in oil, i tried to out of boost for the first 300 miles. Saturday i will check head stud torque, i think if i do take the head off i will have it resurfaced and put a oem honda gasket on instead of the cometic
10-11-2007, 04:03 PM
#10
3.0 BAR
Join Date: Apr 2006
Posts: 3,015
Re: So why is my motor smoking?
a general rule of thumb when using ARP studs is to install them torque them down,and break them loose again.. do it about 3 times to get the proper strech from the bolts.. check your torque and do a leak/compression test.
