i swapped a jdm d15b into my coupe and ever since the first time it warmed up i can smell burning coolant coming out the tail pipe.

i did a bunch of tests and its almost been a month now and nothing is happening. i only had to add a little coolant once. compression, leakdown, pressure test, oil... everything checks ok. i also checked the iacv.

compression: 205-210 psi accross
leakdown was perfect and no bubbles in the coolant.


Modified by ham at 4:21 PM 2/25/2006

 

headgasket

 

a used swapped motor is brand new?

 

"new" jdm. it looks brand new but i has some mileage from the civic VTI it came out of

 

bump, i dont want to tear my motor apart and find nothing.....it could be something simple

 

pulled the plugs.... they look normal

 

no ideas?

 

did u mess with the im when u swapped the motor or did use use the one already on there?

 

its completely untouched, just dropped it in.

 

i have the same motor and i go through coolant like crazy. i dont know whats the probelm either...it could possibly be my headgasket. i always end up refilling my coolant box like every month

 

If it was the headgasket your oil would be a milky coffee color and the car would consistently overheat. Does that for subarus anyways...

 

are u sure your burning it? or is it leaking and ull notice u need to refill?.

 

no signs of leaks..just constantly refilling it more than usual.

 

i stick my nose in the tailpipe and i can smell it, and thats the only place i can smell it. it stinks whenever i get out of the car... took me a while to figure out its coming from the tailpipe.

 

i hate my life

 

its possible that your theromostat isnt opening up all the way and its just boiling your coolant

 

its not overheating, i have no driveability issues.

 

So it smells sweet right? Are you getting any white smoke?

 

no white smoke is noticeable... again ive only had to add once. it just STINKS REALLY BAD. people tell me they smell burning coolant. its definitely coming out the tailpipe and not burning or leaking anywhere else.

 

you cant just drop that motor in you have to change a few parts. change your thermostat and obviosly you have a pin hole leak somewhere thats leaking on your exhaust pipe. find white stains on your engine bay, that would be an indication that coolant leaked and burned there.

 

d15b jdm water pumps suck you should have changed that before you droped the motor in.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91integraLSVTEC &raquo;</TD></TR><TR><TD CLASS="quote">you cant just drop that motor in you have to change a few parts. change your thermostat and obviosly you have a pin hole leak somewhere thats leaking on your exhaust pipe. find white stains on your engine bay, that would be an indication that coolant leaked and burned there.</TD></TR></TABLE>

you didnt pay attention to the post, i said its burning coolant through the combustion chamber. and yes i can just drop a motor in, the maintenance is over rated. i didnt even change the plugs/wires. timing belt i agree with because its 15 year old rubber. i have no smell or signs of coolant leaking under the hood.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ham &raquo;</TD></TR><TR><TD CLASS="quote">
its burning coolant through the combustion chamber.</TD></TR></TABLE>

If coolant is burning with A/F mixture in the cylinders, why don't you have white smoke? Also, what type of exhaust setup are you running? How many miles on the cat? And please, describe the actual smell you're smelling.

 

ah man that sux

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Screwtape. &raquo;</TD></TR><TR><TD CLASS="quote">

If coolant is burning with A/F mixture in the cylinders, why don't you have white smoke? Also, what type of exhaust setup are you running? How many miles on the cat? And please, describe the actual smell you're smelling.</TD></TR></TABLE>

its very little, like i said i only had to add coolant once. the smell is sweeter then just the smell of coolant but smells like coolant still. the exhaust is stock oem (new).