heater valve question

i picked up a heater valve for my 87 307 caprice classic wagon. the one in the car is different though. the new one has a threaded inlet on the top and the old one doesn't. however it doesn't seem like the inlet is even usuable or passes air/fluid. no picture i find shows the part like the old one in the car now. any ideas or knowledge on this?

thanks

[quote=moliva1568;6086427]i picked up a heater valve for my 87 307 caprice classic wagon. the one in the car is different though. the new one has a threaded inlet on the top and the old one doesn't. however it doesn't seem like the inlet is even usuable or passes air/fluid. no picture i find shows the part like the old one in the car now. any ideas or knowledge on this?


on the rear of the 307 olds engine passengerside is where this is screwed into the top of the engine..then you have the vacuum line to control the valve...I forget if with or with out vac the valve opens..you should check this first ..before installing.

the valve should have a shape thats gonna accept the small hose. also use some heat on the old valve if you need alot of force to remove...usually the diaphram ruptures then the valve stops working/or the vacuum line is defective..

[quote=moliva1568;6086427]i picked up a heater valve for my 87 307 caprice classic wagon. the one in the car is different though. the new one has a threaded inlet on the top and the old one doesn't. however it doesn't seem like the inlet is even usuable or passes air/fluid. no picture i find shows the part like the old one in the car now. any ideas or knowledge on this?


on the rear of the 307 olds engine passengerside is where this is screwed into the top of the engine..then you have the vacuum line to control the valve...I forget if with or with out vac the valve opens..you should check this first ..before installing.

the valve should have a shape thats gonna accept the small hose. also use some heat on the old valve if you need alot of force to remove...usually the diaphram ruptures then the valve stops working/or the vacuum line is defective..

it has the small hose on the end of the diaphragm. it has where it screws into the engine. it has where the hose from the core connects. the inlet in question in on top between the diaphragm and hose connection. it's threaded like a bolt or screw could go in but it's blocked so nothing passes through?
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[quote=j cAT;6086435]

it has the small hose on the end of the diaphragm. it has where it screws into the engine. it has where the hose from the core connects. the inlet in question in on top between the diaphragm and hose connection. it's threaded like a bolt or screw could go in but it's blocked so nothing passes through?
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that looks like the correct part except for the small nut fitting looking on the top of the valve. if this is sealed up this may have been designed and modified to be used with this open in another application..

test before installing. hook up to a hose with water and see if it opens the valve when heat is on..using a vacuum line to the new valve..

i don't know for sure what it was for but it worked. we actually used it to screw it back on. maybe that was it's purpose??
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i don't know for sure what it was for but it worked. we actually used it to screw it back on. maybe that was it's purpose??
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that valve was a problem getting clogged/stuck..
your gonna need that heat the cold is coming ..this week

it was clogged. good thing we got it changed. it's freezing now.

the heat has gone luke warm again. i'm guessing i should check here again. we've got a "heat wave" starting tomorrow. they say it'll be 30 degrees out. i better get to it.
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the heat has gone luke warm again. i'm guessing i should check here again. we've got a "heat wave" starting tomorrow. they say it'll be 30 degrees out. i better get to it.
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report back with whats is causing the blockage..also I would flush out the heater core and see what gets blown out...

i def need to flush it but the culprit this time was as simple as a low antifreeze level.

i def need to flush it but the culprit this time was as simple as a low antifreeze level.


Never overlook the obvious. :runaround:

Try the local Home Depot, or the hardware store for some plumbing parts!

i def need to flush it but the culprit this time was as simple as a low antifreeze level.

your the 3rd person this year that had the same problem , same fix ..this is a weird year ...must be the cold weather..

your the 3rd person this year that had the same problem , same fix ..this is a weird year ...must be the cold weather..

Mercury is in retrograde (for you astrology buffs) until Jan 15. :shakehead

That might explain a lot of strange things that have been happening to me lately also. :screwy: