what did you do to your ride today?

[3X00-Modified]

I think now the thermostat should be in question if not the HG not holding pressure perhaps...

Did you end up getting a good fan for it?

[Asylum]

What happened AGAIN it turns out is the plastic connector they sell for by-passing the heater core broke again.

It's a Dorman part that connects the 3/4 hose to the 5/8 hose.

Failed twice now! Just plain broke in half!! Both in the same area. PITA!

Going to look for a metal piece, or just break down and put a new heater core in the damn thing.

[Rettax3]

What happened AGAIN it turns out is the plastic connector they sell for by-passing the heater core broke again.
It's a Dorman part that connects the 3/4 hose to the 5/8 hose.
Failed twice now! Just plain broke in half!! Both in the same area. PITA!
Going to look for a metal piece, or just break down and put a new heater core in the damn thing.

I would just pony-up the dough for brass connectors from a hardware store -probably about $10.00-15.00 for both pieces, maybe less. A 3/4" hose-barb to female NPT fitting, and a 5/8" hose-barb to male NPT fitting, five inches of Teflon pipe-thread tape, a pair of hose-clamps (which you already have), and you won't have to deal with it again until you have to replace those hoses, or until you want to fix the heater-core. Done. I tried using plastic plumbing parts in a heater-hose setup on a project back in the '90s, and they deformed from the heat. I know the Dorman bypass POS is a different material, but I came to the conclusion that this is yet another area where plastic is inappropriate. Good luck (you need it, I think )!

[Asylum]

My thoughts exactly!! If I can find those pieces.

The thermostat and rad cap were both new when the rad was replaced in June.

They didn't mention that they couldn't find a 180 and put a 195 in instead. It's actually noticeable on the gauge.

As far as a fan is concerned it really hasn't made much of a difference without one.

As long as it's not leaking it hasn't been an issue at all. But then it is a brand new rad.

[heavywoody]

Why use plastic when you can use brass?

[Rettax3]

They didn't mention that they couldn't find a 180 and put a 195 in instead. It's actually noticeable on the gauge.

Ugh! For a Quad, 195 is irresponsible, IMO! How could they do that to your poor car? Where I was living before higher in the mountains, at 9,000 feet above sea-level, water boils before the thermostat even opens with a 195! (The Twin Cam 2.4 in my turbo Z-24 had all kinds of problems with a 195 -also related to a couple of bad reservoir-caps, but still... Even with a 50/50 glycol mix, I was having problems with minor boiling at that altitude, once I shut the engine down.) The Fail-Safe thermostats come in 180, no one else had a 180 a few years ago when I was looking around, then suddenly Auto Zone came out with one in their Duralast brand for a good price right after I gave up and starter driving around without a 'stat. Makes me wonder if they really hadn't been available, or if I was just talking with the wrong people at the various parts-stores... I think this was either before I had discovered Rock Auto (thanks DTMAce! ), or I simply didn't want to wait for shipping, I don't recall for sure. But they are definitely available now.

[woody90gtz]

I ran one of those Dorman 5/8-3/4 heater hose bypass adapters for a summer with no issues in my truck. But it was more out in the open in the engine bay than an L-body location. I'd just do the heater core and be done with it.

Is a Quad a 180 tstat from the factory? I know my truck is and I assumed the Beretta was as well. I know the Cruze is over 200.

[Asylum]

Well it will get a new core when I swap the dash. Just have nowhere to do it til I get re-settled somewhere.

Have really no need for the heater in this car, but it will get one to keep it whole.

Now to go hunting for brass.

[1988GTU]

They are a little lighter weight though, so if you are the kind of driver who sand-papers their underwear down to pick up 1/100,000 of a second at the track, I suppose that would matter.

If one capable of sanding down their undees, they might have more issues than worry about picking up that 1/100,000 of a second at the track. Ha!

[3400tZ]

Asylum: http://jagsthatrun.com/Pages/Parts_Cool ... icers.html

Ordered some stuff from them, very nice to deal with. For 10$, you can't go wrong

[Rettax3]

Is a Quad a 180 tstat from the factory? I know my truck is and I assumed the Beretta was as well. I know the Cruze is over 200.

..Pretty sure OE spec is for a 195 degree -which as I said is irresponsible for a factory design. Of course, not everyone lives a mile and a half up, and even then a good mix of glycol should keep it from boiling, until the engine temperature inevitably spikes after shut-down that is, and of course the radiator cap (or pressurized reservoir cap) should also keep the bubbly-gurgly at bay, but because I had issues with it I am blaming GM for a bad design flaw. That is just how I roll... (Self-deprecating humor here, in case that doesn't come across well through internet type, but I still feel that with the history of overheated Quads, the 2.4 Twin Cam should have come OE standard with a 180 degree stat, and I am 90% sure it had a 195.)
3400tZ, that is a nice looking piece, that would work fine too. I actually looked at those (or similar) when I was trying to re-configure the heater-core lines on the GTU's 3800 after the molded hose I had (from what car, I cannot recall, and all my records were lost when bstuff crashed and my computer was stolen) in the car started to leak. I had temporarily just used a 3/4" hose and replaced the nipple in the 3800's upper heater outlet with a 3/4" one instead of the 5/8" nipple it had (the 3800 series has a vast number of interchangeable heater-hose outlet/inlet nipples, that plug into the engine and point at different angles and have both 5/8" and 3/4" sizes available). I have now just finished setting up an EMT conduit line to eliminate a long stretch of that hose. I need to take a break from putting the GTU back together though, I have a lot of other things going on over the next couple of weeks, so she will have to wait for a little while longer.

[Asylum]

Well that would certainly solve the problem, but I need it today, LOL!

But I'm going to order one anyway. THANX.

[Asylum]

Holy BRASS!!

$16 later the mother of all hose connectors is ready to go on.

Had to buy two barbs (boy is THAT an unfortunate choice of words) and a coupler, and it must weigh a pound at 5" long, but it will outlive me and the car!

[3X00-Modified]

LOL Save it and recycle it if you buy a heater core...

[heavywoody]

LOL... in this case, two barbs are better than one?