Odd cooling leak

Paul_NJ · 03-11-2009, 11:20 AM

The other night, I had (luckily) just pulled into my driveway when I was confronted with steam blowing out from under my MKIII, on the right side. Best I can tell so far, it's from a rubber boot that covers a tube end coming out of the block back between the turbo and the firewall. Same thing blew 5 years ago. What the heck is that thing? . . .. seems like a weird design to have a rubber booted stub like that. Are there any better solutions to just replacing that boot?

Thanks

Bill UK · 03-11-2009, 08:08 PM

Is this the one? on later models Toyota capped the pipe with a metal cap as part of the pipe assembly. More pic`s in this Link for right-hand drive. You can see why Toyota capped the pipe, so it could be used for left or right-hand drive Supra`s, all to do with heater matrix feed and return.

Paul_NJ · 03-12-2009, 11:41 AM

Hi Bill

Thanks for the reply and for posting the diagram. Yeah, that's it, as far as I can tell peering down in there. That rubber cap is covered with old oil and feels very soft and spongy, but I can't verify if that's where the leak is. I've got to get a pressure tester to find out what blew. I'm long overdue replacing the oil seals on top of the engine, and all the vacuum lines, so I'll get a better look once I get into that.

Paul

03-11-2009, 11:20 AM	#1
Paul_NJ Intake Join Date: Oct 2008 Location: New Jersey Posts: 36	Odd cooling leak The other night, I had (luckily) just pulled into my driveway when I was confronted with steam blowing out from under my MKIII, on the right side. Best I can tell so far, it's from a rubber boot that covers a tube end coming out of the block back between the turbo and the firewall. Same thing blew 5 years ago. What the heck is that thing? . . .. seems like a weird design to have a rubber booted stub like that. Are there any better solutions to just replacing that boot? Thanks

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Heater Union (Coolant Leak)	slader99	MKIII Supra	11	12-28-2009 12:29 AM
Oil Leak.	supramacist	MKIII Supra	0	05-01-2008 01:18 AM
Coolant Leak	bossman	MKIII Supra	2	04-12-2008 09:31 PM
Oil Leak Question	kidsusukigsxr	Non-Generation Specific Questions	2	06-26-2007 03:17 PM
gas tank leak	burton51m	MKIII Supra	14	11-24-2006 06:16 PM

03-11-2009, 08:08 PM	#2
Bill UK AEM EMS Join Date: Jul 2006 Location: UK Posts: 891	Is this the one? on later models Toyota capped the pipe with a metal cap as part of the pipe assembly. More pic`s in this Link for right-hand drive. You can see why Toyota capped the pipe, so it could be used for left or right-hand drive Supra`s, all to do with heater matrix feed and return.

03-12-2009, 11:41 AM	#3
Paul_NJ Intake Join Date: Oct 2008 Location: New Jersey Posts: 36	Hi Bill Thanks for the reply and for posting the diagram. Yeah, that's it, as far as I can tell peering down in there. That rubber cap is covered with old oil and feels very soft and spongy, but I can't verify if that's where the leak is. I've got to get a pressure tester to find out what blew. I'm long overdue replacing the oil seals on top of the engine, and all the vacuum lines, so I'll get a better look once I get into that. Paul