I'm Crazy, no Water By-Pass?

[Banditlead]

So, I put my new intake manifold on the Stang, and I am hooking everything up, and realized that I had to buy a new Water By-Pass. But as far as I can tell, either I am calling it by the wrong name, or I am doing something very wrong.
On my old intake, about an inch behind the Thermostat housing, has a 90 degree bend that had a bypass hose attached to it. Everywhere I have gone, just scratched there head and said they didn't have it.

Am I really crazy?

What are people using now? Should I throw a pipe plug in, and get a thermostat housing with the built in bypass?

Bear with me, I made the mistake of purchasing the car right after High School, now I'm stuck with a Chiltons and a bunch of tools trying to get things right while I work full time... (Some excuse, that was 4 years ago)

 

[12sec67]

what kind of car and what engine?
the one that comes out of the intake is to go to the heater core.. that is he one you need to put a pipe fitting into. from the heater back goes back to the water pump. or you can bypass the heate core and go straight to the pump.
is this what your talking about?

 

[Banditlead]

Sorry, its a 66 with a 289. I will take a picture when I get home from work (If there is still light)

 

[12sec67]

look agian at the previous post for a pic...

 

[badazz68stang]

The only thing an inch behind the thermostat housing would indeed be the 90 heater elbow which runs back to the heater core.

 

[mr-fixit]

I think what you are talking about is the by pass hose that goes from the water pump to the thermostat housing. In the pic posted by 12sec67, the hose is not on the housing, the nipple it goes on is blocked from view by the turnbuckle. You can see in the pic where the other end of the hose goes into the waterpump, just to the right of his red line that shows the heater hose route. If you mean the fitting in the intake, as 12sec67 said, that is for the heater hose.

 

[brianj5600]

Why would you omit it? If there is no flow, i.e. no bypass, the thermostat will not heat up and open until the motor is smoking hot. You need some flow to get warm water to the thermostat and operate it.

 

[bnickel]

the sbf has a bypass fitting on the thermostat housing that connects to the water pump. the other fitting they are talking about is for the heater and can be bypassed with no ill effects on the engine, just won't have a working heater.

 

[Banditlead]

Sorry, there wasn't a picture when I went to work? Or maybe I didn't just give it time before I rushed out the door. But that is exactly what I am talking about, the heater elbow on the intake manifold. If thats what its called. I don't want to omit it, I just couldn't find it because I was asking for the wrong part, thinking I was asking for the right.

 

[brianj5600]

Does it attach to this piece or the intake? http://store.summitracing.com/partd...924500+4294908331+4294839037+115&autoview=sku

 

[Max Power]

Nobody makes easily found 90 degree elbows that will fit that fitting, at least that I could find, not even hardware or plumbing stores. For years I ran a straight nipple out of that spot and it worked OK, just looked kinda funny. The problem is almost all aftermarket intakes run a larger hole in the casting than the factory one, so even if you had the factory piece, it wouldn't fit.

But, the good news is National Parts Depot now makes a piece that retains the original elbow dimensions but fits aftermarket intakes. Here are two pics of the NPD piece.

View attachment 473059

View attachment 473060

 

[347Fastback]

Somebody show me how you have the hoses hooked up bypassing the heater.... I am not running a heater...

 

[D.Hearne]

Most parts houses stock that 90 degree fitting, you just have to know what you're looking for and have a competent parts guy ( or gal) that knows his/her stuff. A vendor called 4 seasons makes these. Probably others too that make/market A/C-heater parts. I've looked in Four Seasons parts catalogs and they have pages of different heater fittings, including that one. If all else fails you can got to either Lowe's or Home Depot and get or make up a brass fitting arrangement to take it's place.

 

[19stang66]

Hey maxpower, do you remember where in the catalog that 90* fitting is? or what its called.

 

[Max Power]

In the coolant accessories section, if I remember right. My catalog is at work.

 

[voipguy]

I just got one of these from NAPA Auto parts in March
part# 660-1547
line: BK
Cost: $11.99

 

[19stang66]

ha, I went to NAPA today looking for it and the kid behind the counter couldnt find one. I'll have to go back when one of the smarter guys is working. Thanks voip. Oh and I found that one in the NPD catalog max.

Do you just buy some heater hose and cut it to length then? What works best to cut it?

 

[brianj5600]

I put a plug in the intake and a cap on the water pump to skip the heater.

 

[19stang66]

So you dont have to run a hose from the intake to the water pump? hmmm thats interesting, that'll clean things up a lot i bet. Any pics brian?

 

[Max Power]

NPD number 18599-10. In the heater section. $6.95 retail, if you decide to use one.