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TPI Engine Bay Clean-up Vacuum & Smog

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TPI Engine Bay Clean-up Vacuum & Smog

Old 12-11-2018, 02:46 AM
  #51  
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Re: TPI Engine Bay Clean-up Vacuum & Smog

M-F'er. When you meet a stranger in the Alps, he'll fill you in.
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Old 12-11-2018, 07:56 AM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Hahahahah thats perfect. In 31 years I've never heard that. I just added a new word to my dictionary. Ok back to the business. So that pipe goes to the heads you said and not the cat.?
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Old 12-11-2018, 11:05 AM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Originally Posted by Drew View Post
Usually the converter is on it's own spur. The one with the Tee is the Melon-Farmer pipe. It goes behind the engine, bolts to both heads, and feeds the driver's manifold. It's a real Melon-Farmer to work around, and remove because it's a one piece steel pipe that is bolted in.

This one is off an 86, thinking 87 until they went to the rubber version were about the same aside from minor changes. This one came out with the engine.



May God have mercy on your soul. Amen.
well let me ask you this drew. Since I'm removing all emissions and smog etc. If I cant get to the back of the head can i cut it off and plug it?
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Old 12-11-2018, 02:29 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

You could, it's just a tube from one manifold to the other. Personally I'd do my best to remove it in one piece. At some point, parts like that will carry an insane resale value.
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Old 12-11-2018, 03:16 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Yea but theres mo way to get my hand back there
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Old 12-11-2018, 04:13 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Yep, it sucks regardless what you do. I'm not entirely sure, but all the block grounds might be on the same stud in the head that the tube is bolted to... Makes it a real MF'r to get anything apart. I'd expect even cutting the tube would be a pain with as tight as everything is back there. Could always just cap the ends so it looks clean.

The AIR injection piping is one of the things that GM really perfected as time went on. The earlier cars have valves and hoses running everywhere. Then they went to the hard pipes around the back of the engine, and finally went to a rubber hose in the later years. Nice thing about the rubber hose is it practically just pulls out once it's unhooked from the valves. Also since it's flexible, you can just tuck it out of the way.
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Old 12-11-2018, 04:14 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Originally Posted by Drew View Post
Yep, it sucks regardless what you do. I'm not entirely sure, but all the block grounds might be on the same stud in the head that the tube is bolted to... Makes it a real MF'r to get anything apart. I'd expect even cutting the tube would be a pain with as tight as everything is back there. Could always just cap the ends so it looks clean.

The AIR injection piping is one of the things that GM really perfected as time went on. The earlier cars have valves and hoses running everywhere. Then they went to the hard pipes around the back of the engine, and finally went to a rubber hose in the later years. Nice thing about the rubber hose is it practically just pulls out once it's unhooked from the valves. Also since it's flexible, you can just tuck it out of the way.
that's what I was going to do is cut it and the cap it off nice and clean like
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Old 12-11-2018, 04:55 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Originally Posted by Drew View Post
Usually the converter is on it's own spur. The one with the Tee is the Melon-Farmer pipe. It goes behind the engine, bolts to both heads, and feeds the driver's manifold. It's a real Melon-Farmer to work around, and remove because it's a one piece steel pipe that is bolted in.

This one is off an 86, thinking 87 until they went to the rubber version were about the same aside from minor changes. This one came out with the engine.
Melon-farmer, lol. I never heard that before

I had an 88 GTA and it had the same hard tube around the back of the engine. Pretty sure the 91 TA I have also has the hard tube around the back
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Old 12-11-2018, 04:56 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

My 91 z28 had the rubber tube
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Old 12-11-2018, 05:17 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

I tried reaching back there to no avail so I'll just cute it and cap it and call it a day that way I can get started on running the coolant bypass line. This is a damn project boyos lol
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Old 12-11-2018, 05:22 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Tb bypass ?
Dayco 87662 makes a good tb bypass hose.
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Old 12-11-2018, 05:24 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Yea TB bypass. I'll look into that. Parts store didnt have anything so may have to look online
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Old 12-11-2018, 05:29 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

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Old 12-11-2018, 05:34 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

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Old 12-11-2018, 05:54 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Yea asvance auto has em. Itll work since I'm bypassing the heater valve also
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Old 12-11-2018, 05:56 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

You can get a barbed hose coupler at Home Depot.
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Old 12-11-2018, 06:02 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog



I think it’s 3/4 or could be 5/8
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Old 12-11-2018, 06:07 PM
  #68  
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Already got em. Parts store local carries the stuff for me for my shop
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Old 12-11-2018, 09:03 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Unless you have a DD and live in a cold climate, why not just bypass the heater core and eliminate it?
It's bound to start leaking (if it already hasn't) anyway
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Old 12-12-2018, 05:46 AM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

You should always keep the heater working. You will regret it.
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Old 12-12-2018, 07:25 AM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

I never cut out heat. Even on my track card it's still there. Plus I do live in a moderately cold climate half the year.
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Old 12-12-2018, 07:43 AM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Originally Posted by VincentZ28 View Post
You should always keep the heater working. You will regret it.
why is that ??....in the 35 plus years I've been messing with these cars I have yet to regret it.....
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Old 12-12-2018, 03:48 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Originally Posted by BizJetTech View Post
why is that ??....in the 35 plus years I've been messing with these cars I have yet to regret it.....
You live in Florida some houses don't even come with heat in them, the rest of us need it to defrost the windshield on occassion
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Old 12-12-2018, 04:04 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Hahahah I spit my drink all over the computer. But it's TRUE. Defrost very much needed up north.
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Old 12-12-2018, 04:14 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Originally Posted by Dusty Dc View Post
Hahahah I spit my drink all over the computer. But it's TRUE. Defrost very much needed up north.
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Old 12-12-2018, 04:41 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Originally Posted by scooter View Post
You live in Florida some houses don't even come with heat in them, the rest of us need it to defrost the windshield on occassion
I lived WAY up North most of my life (Wisconsin) and still never had heat in my cars because when the first cold spell
came in I'd stop driving the cars - I'm lucky to put 300 miles a year on these cars, so no need for heat no matter where I live
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Old 12-12-2018, 06:55 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Originally Posted by BizJetTech View Post
I lived WAY up North most of my life (Wisconsin) and still never had heat in my cars because when the first cold spell
came in I'd stop driving the cars - I'm lucky to put 300 miles a year on these cars, so no need for heat no matter where I live
I daily my 92 JY Firebird, so heat is a necessity, currently live in they tyrannical state of New Jersey
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Old 12-12-2018, 07:44 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

I dont fsmily my 87 quite yet bc I've been putting all new stuff on it. But I probably wont bc ot only has 17k miles on it and I live in PA.
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Old 12-20-2018, 02:39 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Let me pose you chaps one more question. Exhaust Manifold removal. When taking them off the exhaust flange/down pipe.. easier from up top or on the bottom?
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Old 12-20-2018, 11:34 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Come up from underneath with a LONG extension and a deep well socket. Make sure the extension is long enough you can get angry on the breaker bar from under the car without smashing your fingers. Be ready, the studs like to snap off, but if you're not putting the manifolds back it won't matter. Sometimes the nuts will stick to the studs and the studs just unscrew from the manifold. Either way, getting em out ain't bad.
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Old 12-20-2018, 11:42 PM
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Re: TPI Engine Bay Clean-up Vacuum & Smog

Yep putting new ones on. So no worries.
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