LS1 TB coolant line coupler
Thread Starter
Joined: Jan 2002
Posts: 4,072
Likes: 75
From: Casselberry FL
LS1 TB coolant line coupler It appears I've developed a bit of a coolant leak at the coupler. I've always thought the two hoses with a coupler was a bit of a hack, is there a better solution?
Unless you're driving your car in cold weather, the Throttle Body Coolant Line is completely unnecessary. I would recommend bypassing it.
When I've bypassed the TB Coolant line in the past I simply used a single hose with two clamps. No leaks here.
When I've bypassed the TB Coolant line in the past I simply used a single hose with two clamps. No leaks here.
Thread Starter
Joined: Jan 2002
Posts: 4,072
Likes: 75
From: Casselberry FL
It's been bypassed for well over a decade, that's why I'm using a coupler. Is there a reliable solution to run a single hose instead of using a coupler? Or is the only solution still the combination of a 5/16" heater hose & a 1/4" heater hose?
I went to PepBoys and looked through their hardware drawers and found a coupler. Bought two smaller worm clamps and that was it. No idea what the part number was. It was a brass piece and each end had ribs so the rubber hose when pushed on was almost impossible to come off. Almost didn't need clamps, but of course I used them.
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I suppose the 2 different size hoses with a coupler is the correct way to do this. But, I'd like to point out that the more connections you have, the more chances you have to develope a leak.
A single 5/16" Hose with 2 Clamps has worked fine on the half dozen cars I've done this to.
I'm not trying to convince you either way. Just want to point out my experiences. Good luck.
A single 5/16" Hose with 2 Clamps has worked fine on the half dozen cars I've done this to.
I'm not trying to convince you either way. Just want to point out my experiences. Good luck.
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I suppose the 2 different size hoses with a coupler is the correct way to do this. But, I'd like to point out that the more connections you have, the more chances you have to develope a leak.
A single 5/16" Hose with 2 Clamps has worked fine on the half dozen cars I've done this to.
I'm not trying to convince you either way. Just want to point out my experiences. Good luck.
A single 5/16" Hose with 2 Clamps has worked fine on the half dozen cars I've done this to.
I'm not trying to convince you either way. Just want to point out my experiences. Good luck.
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Verdad Gallardo Thread Starter
Joined: Jan 2002
Posts: 4,072
Likes: 75
From: Casselberry FL
So I'm still using a 5/16" heater hose connected to one end of this ribbed brass coupler, and a 1/4" hose from the other end of the coupler to the cylinder head nipple, with hose clamps at each junction, correct?
This is the only thing I could find locally, will this be fine for a coupler? Although historically I only run water Water Wetter with distilled water, I've read that glycol makes fuel line brittle, and I also don't know whether the bulk fuel line is rated for coolant temp and pressure.
https://www.summitracing.com/parts/r...FUovgQodXrMP1w
This is the only thing I could find locally, will this be fine for a coupler? Although historically I only run water Water Wetter with distilled water, I've read that glycol makes fuel line brittle, and I also don't know whether the bulk fuel line is rated for coolant temp and pressure.
https://www.summitracing.com/parts/r...FUovgQodXrMP1w
Last edited by JimMueller; Oct 16, 2016 at 01:30 PM.
So I'm still using a 5/16" heater hose connected to one end of this ribbed brass coupler, and a 1/4" hose from the other end of the coupler to the cylinder head nipple, with hose clamps at each junction, correct?
This is the only thing I could find locally, will this be fine for a coupler? Although historically I only run water Water Wetter with distilled water, I've read that glycol makes fuel line brittle, and I also don't know whether the bulk fuel line is rated for coolant temp and pressure.
https://www.summitracing.com/parts/r...FUovgQodXrMP1w
This is the only thing I could find locally, will this be fine for a coupler? Although historically I only run water Water Wetter with distilled water, I've read that glycol makes fuel line brittle, and I also don't know whether the bulk fuel line is rated for coolant temp and pressure.
https://www.summitracing.com/parts/r...FUovgQodXrMP1w
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