Bearing or exhaust leak?

cre · 03-18-2012, 08:54 PM

Given that you haven't had the bottom end apart there's fair chance that some of the studs in the head pulled loose. It's not common with old aluminum heads supporting very large and heavy exhaust structures... especially a turbo. I'm not going to speculate and definitely not based on a youtube video. Pull the plug wires one at a time. An exhaust leak will also quiet down but it won't go away.

88A3507 · 03-23-2012, 01:41 PM

The car has 2 bad bearings. My mechanic told me after the head rebuild that there was some really heavy oil in the engine. The car was likely driven for some time on a blown head gasket and the bearings are shot.

I will be starting my motor rebuild plan now, something I had hoped to put off for about a year while I gathered parts.

03-18-2012, 08:54 PM	#1
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Given that you haven't had the bottom end apart there's fair chance that some of the studs in the head pulled loose. It's not common with old aluminum heads supporting very large and heavy exhaust structures... especially a turbo. I'm not going to speculate and definitely not based on a youtube video. Pull the plug wires one at a time. An exhaust leak will also quiet down but it won't go away. __________________ 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 --->

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03-23-2012, 01:41 PM	#2
88A3507 Stock Join Date: Feb 2012 Location: Denver, CO Posts: 9	The car has 2 bad bearings. My mechanic told me after the head rebuild that there was some really heavy oil in the engine. The car was likely driven for some time on a blown head gasket and the bearings are shot. I will be starting my motor rebuild plan now, something I had hoped to put off for about a year while I gathered parts.