Pesty heater quick connect fitting

[rhsub]

Chickenhunterbob
The quick connector has a restrictor (rubber disc below O ring) in it to slow the coolant flow through the heater core, without this restrictor your heater perfomance will probably be poor, not that it gets cold in winterpeg . I believe that without the restrictor the flow is to fast through the heater to properly extract heat from the coolant. I have had this problem before when I used a plumbing nipple instead of an automotive nipple. Automotive nipples usually have a much smaller ID than plumbing nipples
Good luck
Ron

[Subzilla]

My turn!! Noticed a nice trail of green stuff while laying under the '83. Popped the hood and see the corrosion and leakeage around the connector going into the crossover from the water pump hose. Just dandy! Just changed the oil, lubed and rotated the tires this weekend and thought I was set for the next few cold winter months. It seems plans always get changed for ya - the higher power in charge!

[rustyk]

My turn!! Noticed a nice trail of green stuff while laying under the '83. Popped the hood and see the corrosion and leakeage around the connector going into the crossover from the water pump hose. Just dandy! Just changed the oil, lubed and rotated the tires this weekend and thought I was set for the next few cold winter months. It seems plans always get changed for ya - the higher power in charge!

"It's always SOMETHING!" - Gilda Radner as Roseanne Roseannadanna, Saturday Night Live

[Subzilla]

Robyn and others, is this the NAPA part ya'll got?? http://www.napaonline.com/MasterPage...Heater+Fitting

I found this on their website and just wanted to confirm the right part before I go in and get the deer-in-the-headlights look when I ask for the 2 connectors that go in the coolant crossover.

[chickenhunterbob]

Robyn and others, is this the NAPA part ya'll got?? http://www.napaonline.com/MasterPage...Heater+Fitting

I found this on their website and just wanted to confirm the right part before I go in and get the deer-in-the-headlights look when I ask for the 2 connectors that go in the coolant crossover.

Something very much like that, except you need 3/4NPT on the threaded end and a 1/2" barb. I looked through the book at NAPA and they had literally hundreds of similar fittings, not the one I needed though.

[Kenneth]

I guess I got real lucky. Earlier this year I removed the lower intake manifold to install a fsd resistor. Well, by the time I finished the quick coupler had started a very small leak while running. The next day or so, I used a wrench and removed it and installed one from carquest. It took me like 10 minutes or so. I guess my luck came from me moving the pipe around so much that I caused it to leak, whereas most of you it started leaking from time and corrosion, etc.

I don't know, I guess I got real lucky from all the stories you guys have.

[frogjmc]

Robyn, I wanted to thank you for all the great advice you offered on this fitting.

I was mentally, physically and dare I say it emotionally prepared to go thru the fitting replacement nightmare.

For some unknown reason, I was able to backout my original fitting intact.

You could've knocked me over with a feather.

All I can assume is Murphy's Law applied. Had I not been so well armed, surely it would've self-destructed.

Anyhoo, I'm off to play the lotto, my stars are aligned today!

Jim

[Robyn]

Glad you had good luck.

The steel replacements from the aftermarket seem ok or at least they dont crumble and come apart.

Best

Robyn

[80Sierra]

GM also has new ones that are made of a quality material now.

I've busted those things off countless times. I just bought a drill bit and tap to make new threads in the intake. Those bits of pot metal get welded in there so tight that even if you don't get the bit perfectly straight / centered you can still cut new threads into everything without any bits of pot metal dislodging themselves. I've yet to have a leak, and it only takes about 2 min to drill / tap