heater control valve

blue72regency · November 17th, 2007, 11:29 PM

ok so after putting my engine back together i find that my heater control valve is leaking coolant out the side of it when i put it under pressure. its leaking out the side of it on one of the moving parts on it
so i go to the auto parts store to pick one up and this is what shows up on their computer for my car for replacement part..something more like this..
http://cgi.ebay.com/ebaymotors/ws/eB...ksid=p3907.m29
however the one that is currently in the intake manifold looks like this...

notable differences would be what looks like something plugged into the side of it where the one at the auto parts store didnt have that.
what's the difference?can i make the one at the auto parts store work? what's the big difference in the 2?

J-(Chicago) · November 18th, 2007, 12:28 AM

The auto parts one looks like what you need. I'll try and take a good picture of the way it is set up on my motor.

Oldsguy · November 18th, 2007, 02:29 PM

I have also seen the kind similar to the one pictured in the link except that the lower end is threaded to fit directly into the manifold instead of having a section of heater hose on it.

J-(Chicago) · November 25th, 2007, 03:24 PM

Correct Oldsguy. It just threads in there, you could buy one from practically any Olds 307-455 model and use brass adapter fittings to make it work.
The easiest way to remove the old one, is to break off the big mushroom top of it, and simply put a socket and extension or box wrench on the nut.

J-(Chicago) · November 25th, 2007, 03:26 PM

Sounds like Steve's Olds experience has been a nightmare for him so far.

joe_padavano · November 25th, 2007, 07:31 PM

The valve you showed in the link isn't even an Olds valve. It has hose fittings on both inlet and outlet. A correct Olds valve needs threads on one end to thread into the manifold.

The later model 307 valve will work fine, though it will not look like your original. It's a different design (mainly to lower manufacturing costs) but it is functionally interchangeable.

blue72regency · November 26th, 2007, 07:41 AM

the one on the ebay link wasnt the exact part, like you guys said it doesnt have the threading. but anyways i did pick one up that was just like the ebay one (not like the one ON my car) and it appears to have ports where there are supposed to be and should function the same way.
no its just going to be a pain in the ass to get the old on off. i put in on when the intake manifold was still off the car because i know what a pain in the ass it is to get off. we'll see.

blue72regency · November 28th, 2007, 07:02 PM

installed the new control valve today. i just took the old sensor off of the old one which screwed right out and transplanted it into the new one. even though it looks different, the new one ultimately functions the same way.

gerlof_1 · December 12th, 2007, 02:12 PM

dont forget:does vacuum opens or closes the valve.

November 17th, 2007, 11:29 PM	#1 (permalink)
blue72regency Junior Member Join Date: Oct 2007 Location: Great Lakes, IL Posts: 23	heater control valve ok so after putting my engine back together i find that my heater control valve is leaking coolant out the side of it when i put it under pressure. its leaking out the side of it on one of the moving parts on it so i go to the auto parts store to pick one up and this is what shows up on their computer for my car for replacement part..something more like this.. http://cgi.ebay.com/ebaymotors/ws/eB...ksid=p3907.m29 however the one that is currently in the intake manifold looks like this... notable differences would be what looks like something plugged into the side of it where the one at the auto parts store didnt have that. what's the difference?can i make the one at the auto parts store work? what's the big difference in the 2? __________________ Steve AKA "Buck" -1972 Oldsmobile Ninety-Eight (non regency type) -2000 Mustang GT vert -2000 Camaro Z28 t-top

November 18th, 2007, 12:28 AM	#2 (permalink)
J-(Chicago) Seasoned beater pilot. Join Date: Jan 2007 Location: Chicago Posts: 2,696	The auto parts one looks like what you need. I'll try and take a good picture of the way it is set up on my motor. __________________ I'd rather have a numbers matching poker hand.

November 18th, 2007, 02:29 PM	#3 (permalink)
Oldsguy Hot Rodder at heart Administrator Join Date: May 2004 Location: Lees Summit MO Posts: 5,360	I have also seen the kind similar to the one pictured in the link except that the lower end is threaded to fit directly into the manifold instead of having a section of heater hose on it. __________________ Dan '77 Cutlass Supreme '46 2 door "The rocket 455.....it's a sledgehammer approach to a thumbtack world" LuxBlue of HAMB.

November 25th, 2007, 03:24 PM	#4 (permalink)
J-(Chicago) Seasoned beater pilot. Join Date: Jan 2007 Location: Chicago Posts: 2,696	Correct Oldsguy. It just threads in there, you could buy one from practically any Olds 307-455 model and use brass adapter fittings to make it work. The easiest way to remove the old one, is to break off the big mushroom top of it, and simply put a socket and extension or box wrench on the nut. __________________ I'd rather have a numbers matching poker hand.

November 25th, 2007, 03:26 PM	#5 (permalink)
J-(Chicago) Seasoned beater pilot. Join Date: Jan 2007 Location: Chicago Posts: 2,696	Sounds like Steve's Olds experience has been a nightmare for him so far. __________________ I'd rather have a numbers matching poker hand.

November 25th, 2007, 07:31 PM	#6 (permalink)
joe_padavano Super Moderator Join Date: Mar 2007 Location: Northern VA Posts: 4,396	The valve you showed in the link isn't even an Olds valve. It has hose fittings on both inlet and outlet. A correct Olds valve needs threads on one end to thread into the manifold. The later model 307 valve will work fine, though it will not look like your original. It's a different design (mainly to lower manufacturing costs) but it is functionally interchangeable. __________________ Joe Padavano 64 Jetstar 88 Conv 66 442 L-69 Conv 68 W-30 69 H/O 69 442 70 W-30 72 442 84 Custom Cruiser 86 Caprice wagon (w/307 Olds)

November 26th, 2007, 07:41 AM	#7 (permalink)
blue72regency Junior Member Join Date: Oct 2007 Location: Great Lakes, IL Posts: 23	the one on the ebay link wasnt the exact part, like you guys said it doesnt have the threading. but anyways i did pick one up that was just like the ebay one (not like the one ON my car) and it appears to have ports where there are supposed to be and should function the same way. no its just going to be a pain in the ass to get the old on off. i put in on when the intake manifold was still off the car because i know what a pain in the ass it is to get off. we'll see. __________________ Steve AKA "Buck" -1972 Oldsmobile Ninety-Eight (non regency type) -2000 Mustang GT vert -2000 Camaro Z28 t-top

November 28th, 2007, 07:02 PM	#8 (permalink)
blue72regency Junior Member Join Date: Oct 2007 Location: Great Lakes, IL Posts: 23	installed the new control valve today. i just took the old sensor off of the old one which screwed right out and transplanted it into the new one. even though it looks different, the new one ultimately functions the same way. __________________ Steve AKA "Buck" -1972 Oldsmobile Ninety-Eight (non regency type) -2000 Mustang GT vert -2000 Camaro Z28 t-top

December 12th, 2007, 02:12 PM	#9 (permalink)
gerlof_1 Member Join Date: Sep 2006 Location: netherlands Posts: 62	dont forget:does vacuum opens or closes the valve.

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