cooling hose

projectheaven · 03-14-2008, 09:47 PM

Hello all,
Does anyone have any suggestions on what I can use for the 3/4 hose that goes from the thermastat housing to the water pump? I bought a chrome housing and it doesnt have the metal tube.

Eighttime · 03-15-2008, 06:33 AM

Is it also missing the hole, where the by-pass neck should be?

rocketraider · 03-15-2008, 09:23 AM

Ask the parts store for a bypass hose for a 1965-67 425 engine. Those didn't have the curved metal tube; they had a molded curved hose instead. The change was made in the late 60s since apparently a curved metal tube was cheaper to make than a curved molded hose.

A good (read accommodating) parts store will let you ramble thru their molded hose stock and match up something.

I expect this chrome t-stat housing will give you leak problems. I've never seen one that didn't. You need to sand the sealing surface on a piece of plate glass or known flat metal plate to true it. Expect to use a lot of sealer even then.

projectheaven · 03-15-2008, 10:21 AM

The chrome housing has the bypass hole.Rocket raider gave good advise.I'll definitely look and call some auto parts stores today.

03-14-2008, 09:47 PM	#1 (permalink)
projectheaven Senior Member Join Date: Dec 2007 Location: San Francisco bay area Posts: 107	cooling hose Hello all, Does anyone have any suggestions on what I can use for the 3/4 hose that goes from the thermastat housing to the water pump? I bought a chrome housing and it doesnt have the metal tube. __________________

03-15-2008, 09:23 AM	#3 (permalink)
rocketraider Oldsdruid Join Date: Dec 2007 Location: Danville Vajenya, the Last Capital of Dixie Posts: 345	Ask the parts store for a bypass hose for a 1965-67 425 engine. Those didn't have the curved metal tube; they had a molded curved hose instead. The change was made in the late 60s since apparently a curved metal tube was cheaper to make than a curved molded hose. A good (read accommodating) parts store will let you ramble thru their molded hose stock and match up something. I expect this chrome t-stat housing will give you leak problems. I've never seen one that didn't. You need to sand the sealing surface on a piece of plate glass or known flat metal plate to true it. Expect to use a lot of sealer even then. __________________ I know absolutely nothing about Oldsmobiles. Just ask the owner of Oldspower.com

03-15-2008, 10:21 AM	#4 (permalink)
projectheaven Senior Member Join Date: Dec 2007 Location: San Francisco bay area Posts: 107	The chrome housing has the bypass hole.Rocket raider gave good advise.I'll definitely look and call some auto parts stores today. __________________

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03-15-2008, 06:33 AM	#2 (permalink)
Eighttime Oldsmobile Asylum Join Date: Mar 2008 Location: Northern Indiana Posts: 16	Is it also missing the hole, where the by-pass neck should be?