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DDDDUUUUUBBBBBZZZZZZZZ
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Discussion Starter · #1 ·
I need to replace that rubber Hose plug nipple thingy by the firewall (kinda at the right rear of the engine block/exhaust manifold). I have to do it NOW! (its leaking) Can i get it anywhere besides toyota?
 

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First of all, not all Supras have this nipple. What year is yours? Only the early models have it.

Second, at the very back center of the head is a coolant hose. Under that, exiting to the exhaust side is another. It should attach to a hard pipe that wraps around the exaust side of the engine, and the nipple should be at the back off that hose, IIRC.

I'd take a photo, but mine is one of the ones without.
 

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DDDDUUUUUBBBBBZZZZZZZZ
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Discussion Starter · #15 ·
Nah, I think it was just the way the plumbing was designed. On turbo models, there is no plug and it continues to the turbo coolant lines (correct me if im wrong) but the GE and GTE share simliar designs here. Yes, and that is the thing im talking about. IF you are in doubt about the age of this cap, replace it. I had one go on me up in detroit and all the coolant leaked out and thats when i blew my hg at 187,000 miles.
 

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Discussion Starter · #16 ·
Now that i look closer, truenorthsupra says it happened on his turbo, well who knows, maybe its "optional" haha
 

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suprafly1986 said:
Nah, I think it was just the way the plumbing was designed. On turbo models, there is no plug and it continues to the turbo coolant lines (correct me if im wrong) but the GE and GTE share simliar designs here.
Nope, turbo models also have that bloody bypass cap. I busted 3 of those cheap Napa bypass caps in 18 months (turbo/downpipe heat are a killer), so when I did the rebuild I just pinched that pipe close, and welded it up to seal. Haven't had a problem since.
 
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