Can someone identify these for me?

Jakeklem · 07-25-2008, 09:24 PM

I'm not sure what these two components are for. The one in the red box has a rod that extends down to where the manifold outlet is. The one in the blue box is just sitting on top of the intake manifold. They both have vacuum lines running to them. The picture is taken from the passenger side fender. I would like to learn about my engine so any help would be appreciated!

Also, the studs on the passenger side manifold are broken off. I assume the best remedy for this is to just get a new manifold. Any suggestions on where to pick one up? Do I need to get anything in particular?
thanks in advance for the help!

chevysnbuicks · 07-25-2008, 11:14 PM

It would help to know what year.

It looks a lot like all the emissions crap, but I could be wrong.

cancritter · 07-25-2008, 11:36 PM

blue one is EGR...red one not shure

camok10 · 07-25-2008, 11:47 PM

i belive red goes to you heat riser on the exhaust manifold, its an exhaust restrictor so the engine warms up quicker they usualy dont work right ang get wired open.
as for the studs which manifold exhaust or intake ? and either way if they are studs then they are going to be stuck in your head. you are more than likely going to need a stud extractor and a torch.

GreaseDog · 07-26-2008, 12:40 AM

the red box is the heat riser actuator, the blue is the EGR valve.

Quote:

Originally Posted by camok10

as for the studs which manifold exhaust or intake ? and either way if they are studs then they are going to be stuck in your head. you are more than likely going to need a stud extractor and a torch.

exhaust manifold outlets, common problem. pull them and replace them.

Jakeklem · 07-26-2008, 07:49 AM

Hey guys, thanks for all the replies.
Chevysnbuicks: The truck is a 79, but the decal on the valve cover says GoodWrench350 so I'm thinking it is a crate engine.

As for the heat riser, could I just take it off without it messing something else up?

The manifold studs are on the exhaust on the passenger side. And they are the studs that connect to the y-pipe, NOT the ones going into the head. There are two studs which are rusted off to the point where there is nothing sticking out. They are flush with the surface of the exhaust manifold. If that doesn't make sense, I can try to make a drawing of it.

GreaseDog · 07-26-2008, 08:00 AM

makes perfect sense. take it to an exhaust shop, they'll know what to do with it. probably require welding a bolt to the remaining part of the stud and backing it out.

Jakeklem · 07-26-2008, 08:05 AM

How about the heat riser? Is it independent and I could just take it off the engine?

=Lawrence= · 07-26-2008, 08:06 AM

What's an EGR valve? I thought that was the vacuum advance?

Jakeklem · 07-26-2008, 08:10 AM

Quote:

Originally Posted by Swatrecon_

What's an EGR valve? I thought that was the vacuum advance?

I believe it is the Exhaust Gas Recirculation - it allows some of the exhaust gas to recycle back into the cylinders.

83K1500 · 07-26-2008, 03:33 PM

Quote:

Originally Posted by Jakeklem

I believe it is the Exhaust Gas Recirculation - it allows some of the exhaust gas to recycle back into the cylinders.

correct, it allows for the unburned fuel still in the exhaust to be reburned improving mileage, and to help keep combustion temps even.

jimmy_dong · 07-26-2008, 06:34 PM

x2...egr and heat riser. You can take the heat riser off but you might experience some hesitation when it is cold because the motor will take longer to warm up. Here in Tx. we wire them open or take them off. The egr you gotta have for emissions if they give your car a colonoscopy. lmao.

Jakeklem · 07-26-2008, 09:40 PM

Thanks for the info guys.

trickedout420 · 07-26-2008, 11:41 PM

i took all my emissions crap off. threw a edelbrock carb on it and havent looked back

GreaseDog · 07-26-2008, 11:59 PM

IIRC Pgh is pretty tough with emissions.

Jakeklem · 07-27-2008, 08:23 AM

anyone know the mileage cutoff for being emission exempt? I don't do too much driving so I might not have to worry about it.

GreaseDog · 07-27-2008, 10:53 AM

never heard of a milage exemption, generally they go by year.

83K1500 · 07-27-2008, 01:22 PM

Quote:

Originally Posted by GreaseDog

never heard of a milage exemption, generally they go by year.

or weight class

trickedout420 · 07-28-2008, 12:46 AM

Kansas city doesnt do emissions thank god. they just do a visual inspection of emission equipment. and if you dont have it then you find a more lienient shop to go to..

Jakeklem · 07-28-2008, 02:54 PM

hmmm I thought if a vehicle is driven under a certain amount of miles in a year then it could be emissions exempt. Anyone else hear of this?

07-25-2008, 09:24 PM	#1
Jakeklem Registered User Status: Offline Join Date: Mar 2007 Member ID: 66061 Pics: My Gallery Location: Pittsburgh Posts: 33	Can someone identify these for me? I'm not sure what these two components are for. The one in the red box has a rod that extends down to where the manifold outlet is. The one in the blue box is just sitting on top of the intake manifold. They both have vacuum lines running to them. The picture is taken from the passenger side fender. I would like to learn about my engine so any help would be appreciated! Also, the studs on the passenger side manifold are broken off. I assume the best remedy for this is to just get a new manifold. Any suggestions on where to pick one up? Do I need to get anything in particular? thanks in advance for the help!

07-25-2008, 11:14 PM	#2
chevysnbuicks FSC's resident metal head Status: Offline Join Date: Oct 2006 Member ID: 55935 Pics: My Gallery Location: just south of knoxville, TN. Age: 18 Posts: 295	Re: Can someone identify these for me? It would help to know what year. It looks a lot like all the emissions crap, but I could be wrong. long beds = '88 1500, '77 silvy (werkin' on it) >>> http://www.myspace.com/madxmodman

07-25-2008, 11:36 PM	#3
cancritter Registered User Status: Offline Join Date: May 2006 Member ID: 48067 Pics: My Gallery Location: Alberta Canada Age: 49 Posts: 1,845	Re: Can someone identify these for me? blue one is EGR...red one not shure [Stole/FOUND 13/03/08 :O) 91GM 4x4 excb 5.7 @ 40 over, Westers,Eld 3704.Lunati Trickflow 195 @1.6 RR,Hooker Walpro 190/overbuilt 700r4 /TCS TC,4.10/tru trac,14 bolt,Hooker LT,areofilter,Extreme TBI.msd and still adding 97/rclb/5.7/westers tune/stock 07/ 6.7 Cummins..truck included

07-25-2008, 11:47 PM	#4
camok10 Registered User Status: Offline Join Date: Jul 2008 Member ID: 92567 Pics: My Gallery Location: 48819-MI Age: 19 Posts: 73	Re: Can someone identify these for me? i belive red goes to you heat riser on the exhaust manifold, its an exhaust restrictor so the engine warms up quicker they usualy dont work right ang get wired open. as for the studs which manifold exhaust or intake ? and either way if they are studs then they are going to be stuck in your head. you are more than likely going to need a stud extractor and a torch. 97 z71 k1500 ecsb 3"B.L D.D traded for -] 89 k5 blazer dd hopes for a 4" and 33s<--] 93 k1500 burban w sf/14bolt tb crank and liftloocks (bogger project) 84 c10 restomod some day

07-26-2008, 07:49 AM	#6
Jakeklem Registered User Status: Offline Join Date: Mar 2007 Member ID: 66061 Pics: My Gallery Location: Pittsburgh Posts: 33	Re: Can someone identify these for me? Hey guys, thanks for all the replies. Chevysnbuicks: The truck is a 79, but the decal on the valve cover says GoodWrench350 so I'm thinking it is a crate engine. As for the heat riser, could I just take it off without it messing something else up? The manifold studs are on the exhaust on the passenger side. And they are the studs that connect to the y-pipe, NOT the ones going into the head. There are two studs which are rusted off to the point where there is nothing sticking out. They are flush with the surface of the exhaust manifold. If that doesn't make sense, I can try to make a drawing of it. Last edited by Jakeklem : 07-26-2008 at 07:50 AM.


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07-26-2008, 08:00 AM	#7
GreaseDog King Of The Hill Status: Online Join Date: Dec 2004 Member ID: 21917 Pics: My Gallery Location: IN Age: 27 Posts: 8,227	Re: Can someone identify these for me? makes perfect sense. take it to an exhaust shop, they'll know what to do with it. probably require welding a bolt to the remaining part of the stud and backing it out. 1977 Chevy K20 - 1980 GMC K2500 - 1992 Chevy C1500 SWB - 1993 Chevy C2500 SAS - 1994 Chevy K1500 READ HERE BEFORE ASSUMING YOU NEED A NEW ENGINE!

07-26-2008, 08:05 AM	#8
Jakeklem Registered User Status: Offline Join Date: Mar 2007 Member ID: 66061 Pics: My Gallery Location: Pittsburgh Posts: 33	Re: Can someone identify these for me? How about the heat riser? Is it independent and I could just take it off the engine?

07-26-2008, 08:06 AM	#9
=Lawrence= Doing drywall Status: Offline Join Date: Jul 2008 Member ID: 92507 Pics: My Gallery Location: MN, USA Age: 17 Posts: 313	Re: Can someone identify these for me? What's an EGR valve? I thought that was the vacuum advance? 1994 Z71 K1500 ECSB 5.7 TBI 211K Miles and still goin strong! 285/75/R16 Wrangler A/T

07-26-2008, 06:34 PM	#12
jimmy_dong Supporting Member Status: Online Join Date: Oct 2007 Member ID: 77176 Pics: My Gallery Location: Texas Age: 27 Posts: 259	Re: Can someone identify these for me? x2...egr and heat riser. You can take the heat riser off but you might experience some hesitation when it is cold because the motor will take longer to warm up. Here in Tx. we wire them open or take them off. The egr you gotta have for emissions if they give your car a colonoscopy. lmao. i need a sig something bad.

07-26-2008, 09:40 PM	#13
Jakeklem Registered User Status: Offline Join Date: Mar 2007 Member ID: 66061 Pics: My Gallery Location: Pittsburgh Posts: 33	Re: Can someone identify these for me? Thanks for the info guys.

07-26-2008, 11:41 PM	#14
trickedout420 <('.'<) (^'.'^) (>'.')> Status: Offline Join Date: Jul 2007 Member ID: 71235 Pics: My Gallery Location: missouri Age: 20 Posts: 1,143	Re: Can someone identify these for me? i took all my emissions crap off. threw a edelbrock carb on it and havent looked back 1985 GMC K1500 - show/play truck 83 chevy c10 - lowered finally and sitting on bags (just need air) 92 toyota truck - gas getter / mud toy 91 chevy C1500 - new daily driver

07-26-2008, 11:59 PM	#15
GreaseDog King Of The Hill Status: Online Join Date: Dec 2004 Member ID: 21917 Pics: My Gallery Location: IN Age: 27 Posts: 8,227	Re: Can someone identify these for me? IIRC Pgh is pretty tough with emissions. 1977 Chevy K20 - 1980 GMC K2500 - 1992 Chevy C1500 SWB - 1993 Chevy C2500 SAS - 1994 Chevy K1500 READ HERE BEFORE ASSUMING YOU NEED A NEW ENGINE!

07-27-2008, 08:23 AM	#16
Jakeklem Registered User Status: Offline Join Date: Mar 2007 Member ID: 66061 Pics: My Gallery Location: Pittsburgh Posts: 33	Re: Can someone identify these for me? anyone know the mileage cutoff for being emission exempt? I don't do too much driving so I might not have to worry about it.

07-27-2008, 10:53 AM	#17
GreaseDog King Of The Hill Status: Online Join Date: Dec 2004 Member ID: 21917 Pics: My Gallery Location: IN Age: 27 Posts: 8,227	Re: Can someone identify these for me? never heard of a milage exemption, generally they go by year. 1977 Chevy K20 - 1980 GMC K2500 - 1992 Chevy C1500 SWB - 1993 Chevy C2500 SAS - 1994 Chevy K1500 READ HERE BEFORE ASSUMING YOU NEED A NEW ENGINE!

07-28-2008, 12:46 AM	#19
trickedout420 <('.'<) (^'.'^) (>'.')> Status: Offline Join Date: Jul 2007 Member ID: 71235 Pics: My Gallery Location: missouri Age: 20 Posts: 1,143	Re: Can someone identify these for me? Kansas city doesnt do emissions thank god. they just do a visual inspection of emission equipment. and if you dont have it then you find a more lienient shop to go to.. 1985 GMC K1500 - show/play truck 83 chevy c10 - lowered finally and sitting on bags (just need air) 92 toyota truck - gas getter / mud toy 91 chevy C1500 - new daily driver

07-28-2008, 02:54 PM	#20
Jakeklem Registered User Status: Offline Join Date: Mar 2007 Member ID: 66061 Pics: My Gallery Location: Pittsburgh Posts: 33	Re: Can someone identify these for me? hmmm I thought if a vehicle is driven under a certain amount of miles in a year then it could be emissions exempt. Anyone else hear of this?

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