Coolant Bypass Hose Routing

corrosivecopper · 08-08-2009, 04:01 AM

Hi there all.. Well, I've got an 87 Supra 3.0L turbo. Replaced the headgasket ( I bought it with the BHG) and it runs completely fine, idles and everything when cold. After it warms up, oil pressure seems to go down and the engine knocks loudly. No engine light or anything, still runs good, just a bad knock. Has this happened to anyone? Any help would be greatly appreciated. thanks all!! Cori

corrosivecopper · 08-08-2009, 06:55 PM

See above message..

mirage83 · 08-12-2009, 02:19 AM

Rebuild time, or at the very least time to pull the oil pan and find out which of your rod/crank bearings are toasted. When the engine heats up and the tolerances open up your oil pressure falls at least partly due to bad/worn/spun bearings in the bottom of the engine.

Ask not for whom the rod knocks, it knocks for thee.

Kevin · 08-12-2009, 02:27 AM

what does this have to do with coolant bypass hose routing? lol

mirage83 · 08-12-2009, 12:13 PM

Well, I figured based on his edited post about RK that where that bypass line goes was the least of his problems.

corrosivecopper · 08-12-2009, 05:16 PM

Lol yes indeed. Figured the hose thing out, but didn't know how to delete the thread so I just editted it. Thanks for the responses! I agree, I guess I've just gotta tear out that engine and do some serious work. I was hoping to get a little drive time before the winter with the Supra but I suppose it'll have to wait. And now I've got these 18" rims and rubber that'll sit in my house I guess till it's running lol. I got what worked out at the moment.. unless omseone's interested in them? I'll post pictures if I get enough interest. Thanks again!

08-08-2009, 04:01 AM	#1
corrosivecopper Stock Join Date: Jul 2009 Location: Bonnyville, Alberta, Canada Posts: 20	Engine Knock Hi there all.. Well, I've got an 87 Supra 3.0L turbo. Replaced the headgasket ( I bought it with the BHG) and it runs completely fine, idles and everything when cold. After it warms up, oil pressure seems to go down and the engine knocks loudly. No engine light or anything, still runs good, just a bad knock. Has this happened to anyone? Any help would be greatly appreciated. thanks all!! Cori Attached Thumbnails Last edited by corrosivecopper; 08-09-2009 at 02:41 AM. Reason: New issue

08-08-2009, 06:55 PM	#2
corrosivecopper Stock Join Date: Jul 2009 Location: Bonnyville, Alberta, Canada Posts: 20	See above message.. Last edited by corrosivecopper; 08-09-2009 at 02:44 AM. Reason: Don't know how to delete a thread/reply

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Coolant Hose Diagram	IHateHacks	MKIII Supra	11	07-02-2013 03:08 AM
Heater Union (Coolant Leak)	slader99	MKIII Supra	11	12-28-2009 12:29 AM
Replacing Clutch reservoir Hose and fixing rock plate (plastic one)	Grandavi	MKIII Supra	2	09-29-2008 04:49 AM
Heater Hose routing.	scooterh72	Non-Generation Specific Questions	3	05-12-2006 03:17 PM
coolant passage bypass	revolution	MKIII Supra	4	01-24-2006 11:59 PM

08-12-2009, 02:19 AM	#3
mirage83 12psi boost Join Date: Feb 2007 Location: Georgia Posts: 359	Rebuild time, or at the very least time to pull the oil pan and find out which of your rod/crank bearings are toasted. When the engine heats up and the tolerances open up your oil pressure falls at least partly due to bad/worn/spun bearings in the bottom of the engine. Ask not for whom the rod knocks, it knocks for thee.

08-12-2009, 02:27 AM	#4
Kevin 3" Exhaust Join Date: Apr 2009 Location: Ontario, Canada Posts: 194	what does this have to do with coolant bypass hose routing? lol

08-12-2009, 12:13 PM	#5
mirage83 12psi boost Join Date: Feb 2007 Location: Georgia Posts: 359	Well, I figured based on his edited post about RK that where that bypass line goes was the least of his problems.

08-12-2009, 05:16 PM	#6
corrosivecopper Stock Join Date: Jul 2009 Location: Bonnyville, Alberta, Canada Posts: 20	Lol yes indeed. Figured the hose thing out, but didn't know how to delete the thread so I just editted it. Thanks for the responses! I agree, I guess I've just gotta tear out that engine and do some serious work. I was hoping to get a little drive time before the winter with the Supra but I suppose it'll have to wait. And now I've got these 18" rims and rubber that'll sit in my house I guess till it's running lol. I got what worked out at the moment.. unless omseone's interested in them? I'll post pictures if I get enough interest. Thanks again!