289 Help

ras50gt · Oct 19, 2006

I finally got the 289 in the 1967 coupe, but now I need some help with connecting the hoses. Most of it is straight forward I know, but does anyone have a diagram for the hoses and vacuum lines? The car has two red hoses coming from the firewall, which is most likely for the heater, but I'm not sure where they go. There is also another hose that connects to the block on the passenger side which broke off, think this is something to do with the smog. The manual I have is pretty useless. Anyways, I wanted to get some help on this and if someone has a diagram that would be great. Thanks

D.Hearne · Oct 19, 2006

The 2 red hoses are the heater hoses, one goes to the front of the intake just behind the T-stat housing, the other to one of the 5/8" nipples on the waterpump, the other nipple on the pump is for the bypass hose. Either heater hose will go either way, just route them to where they fit the best, the heater will work, no matter the flow direction. No smog on a 67 289. If it's got an automatic trans, there will be one vac line to the transmission modulator valve (right rear of the trans.) one more vac hose to the distributor.

ras50gt · Oct 19, 2006

Thanks, do you know what the hose is that was connected to the passenger side of the block, connected to the head on the side? And where the heater hoses connect, three other hoses split off from there and one of them is a large red hose with a metal at the end which has a hole, know where that goes?

D.Hearne · Oct 19, 2006

ras50gt said:
Thanks, do you know what the hose is that was connected to the passenger side of the block, connected to the head on the side? And where the heater hoses connect, three other hoses split off from there and one of them is a large red hose with a metal at the end which has a hole, know where that goes?

Not clear on what you're talking about here. Only hoses I know of would be two radiator hoses, one goes to front of the intake and to the top radiator. The bottom radiator hose goes to the waterpump inlet (bottom of the pump, could be either side, depending on the pump and radiator) two heater hoses, one bypass hose (fits between the T-stat housing on the front of the intake and one of the 5/8" nipples on the pump) , the two afore-mentioned vacuum hoses, and possibly one metal line running from the choke on the carb to the right side exhaust manifold. then finally the fuel line between the fuel pump and carb.

Rusty67 · Oct 20, 2006

The "thingy on the firewall" you are talking about is a vaccume controlled regulator for the heater. When the vaccume is applied, (I think) it opens the valve and allows the coolant to flow through the heater core. Could be the other way around...

jtfairlane · Oct 20, 2006

D.Hearne said:
No smog on a 67 289.

Not true. California Cars starting receiving Thermactor Emissions equipment on 289 powered mustangs in 1966.

jtfairlane · Oct 20, 2006

ras50gt said:
Thanks, do you know what the hose is that was connected to the passenger side of the block, connected to the head on the side?

Sounds like a Thermactor Emissions hose.

LMan · Oct 20, 2006

jtfairlane said:
Not true. California Cars starting receiving Thermactor Emissions equipment on 289 powered mustangs in 1966.

Yup. Had one, got the Tshirt.

ras50gt · Oct 20, 2006

So can i eliminate that hose then? also splitting off from that hose is a really long red hose, have no clue where the other end is suppose to connect to. There is another black one that is conneted to the unit at the rear of the intake manifold, this is where the other hoses connect too, I have no clue where this one is suppose to go either.

fasttback · Oct 20, 2006

jtfairlane said:
Not true. California Cars starting receiving Thermactor Emissions equipment on 289 powered mustangs in 1966.

Yep..100% correct. All three of my Mustangs are Kalifornia cars each with there own air pump (now all in boxes in my garage). They also (IMO) jacked-up the heads even more by drilling holes near each exhaust port or through them for the air injection (some did it in the exhaust mainfold I believe). So all my 289 heads with air holes were replaced long ago.

ras50gt · Oct 20, 2006

After a little more research I found out about the Thermactor Exhaust Emission Control System. Im guessing this is what the unit on top of the intake manifold is. Can I just unbolt this, take the hoses out, and then just plug the holes in the cylinder heads? Is there more to it then that? I read something about the carb choke having to be converted, no clue what that means? All the help is greatly appreciated!

D.Hearne · Oct 20, 2006

jtfairlane said:
Not true. California Cars starting receiving Thermactor Emissions equipment on 289 powered mustangs in 1966.

OK so I'll amend that to 90% of 67's had no smog.

ras50gt · Oct 20, 2006

So, I can just take it off......

mustangdave · Oct 20, 2006

Please note on your calenders that D. Hearne made a mistake: this hardly ever happens so maybe we should make it a holiday. We'll call it human day. J/k

Rusty67 · Oct 21, 2006

Yes, you can just remove it.

Looks like the big D is having an off day =P

zookeeper · Oct 21, 2006

D.Hearne said:
OK so I'll amend that to 90% of 67's had no smog.

Don't be too quick to backtrack, my 289/C4 '68 has NO SMOG equipment whatsoever and was built in San Jose, Ca and sold new in San Rafael, Ca. I asked a buddy of mine why and he claims that 2 barrel carbed, auto-equipped cars didn't need the air pump. I don't know if that's true, but I do know another freind's '66 had a 4bbl/4 spd and gobs of smog stuff, and my parents had a '66 428/auto T-Bird and it too had miles of smog plumbing, yet my '68 never had any.

D.Hearne · Oct 21, 2006

mustangdave said:
Please note on your calenders that D. Hearne made a mistake: this hardly ever happens so maybe we should make it a holiday. We'll call it human day. J/k

It's not that I made a mistake, it's just that I usually don't consider California part of the rest of the USA. (and I am human and not perfect )

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