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sdogtype2 Samba Member
Joined: March 27, 2010 Posts: 23 Location: seattle
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Posted: Sun Oct 29, 2023 4:02 pm Post subject: how do you remove intake manifold? |
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Looking to see how you go about removing the intake manifold since I need to replace gaskets. I removed the bolts, loosened the boots but wondering how I remove injectors without getting gas all over the place. Ive looked but cant find any topics. |
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51125 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Sun Oct 29, 2023 4:25 pm Post subject: Re: how do you remove intake manifold? |
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Some kind of VW product you are working on??? _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
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sdogtype2 Samba Member
Joined: March 27, 2010 Posts: 23 Location: seattle
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Posted: Sun Oct 29, 2023 4:29 pm Post subject: Re: how do you remove intake manifold? |
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81 vanagon ,, Yes I know wrong area but its the same engine and figured I would get more traction at the bay instead of the Vanagon since its Air cooled and Its like the black sheep of Vanagons. Have Vw shops up here in Seattle that will work on Bay window and vanagons but tell me nope don't work on Air cooled vanagons.. |
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bsairhead Samba Member
Joined: October 08, 2008 Posts: 3561 Location: viroqua wi.
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Posted: Sun Oct 29, 2023 4:56 pm Post subject: Re: how do you remove intake manifold? |
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Its nice to know year vehicle engine and whether or not its still stock. |
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sdogtype2 Samba Member
Joined: March 27, 2010 Posts: 23 Location: seattle
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Posted: Sun Oct 29, 2023 5:09 pm Post subject: Re: how do you remove intake manifold? |
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81 Air cooled vanagon California emissions. all stock Same engine as 79 |
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bsairhead Samba Member
Joined: October 08, 2008 Posts: 3561 Location: viroqua wi.
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Posted: Sun Oct 29, 2023 5:30 pm Post subject: Re: how do you remove intake manifold? |
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I have never done one. Got a book? |
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51125 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Sun Oct 29, 2023 5:35 pm Post subject: Re: how do you remove intake manifold? |
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If it really is"just like a 79" remove the nuts from the injector clamps and lift the injectors and fuel rail as a unit, no need to disconnect anything. _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
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Wildthings Samba Member
Joined: March 13, 2005 Posts: 50338
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Posted: Mon Oct 30, 2023 9:29 am Post subject: Re: how do you remove intake manifold? |
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Don't break the little 6mm diameter stud that holds the injectors in place. If it doesn't come easily then give it plenty of time to soak. You can pull the manifold runner with out removing the injectors if you slide the boots between the plenum and the runners all the way on to the runners, you may be able to get away without even doing this. You will need four of each kind of injector "seal" when reinstalling them if yours are old and cracked inside, if just loose you can add band clamps.
When going back together make sure that the cooling tin doesn't get caught between the manifold flanges and the heads as that will leave you with a bad vacuum leak. |
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sdogtype2 Samba Member
Joined: March 27, 2010 Posts: 23 Location: seattle
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Posted: Mon Oct 30, 2023 1:36 pm Post subject: Re: how do you remove intake manifold? |
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thanks, got them off today, was wondering if i should clean up the manifold bases as they look dirty.. should i use some like 0000 steel wool to clean the surface?
Also should i use some Edelbrock Gasgacinch Gasket Sealer when i put it back together? |
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51125 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Mon Oct 30, 2023 2:48 pm Post subject: Re: how do you remove intake manifold? |
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They should work dry, steel wool will likely work, I just scrape with a vertical razor blade in most cases. Look over the spacer between the gaskets for cracks if you are re using them, aside from the already mentioned injector seals and tin pinch that's another common vacuum leak source.
The less goo you have to use the easier it is to clean up next time. _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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sdogtype2 Samba Member
Joined: March 27, 2010 Posts: 23 Location: seattle
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Posted: Mon Oct 30, 2023 3:21 pm Post subject: Re: how do you remove intake manifold? |
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Good call on the tin, it was raised up by#2 had to tighten it up! |
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timvw7476 Samba Member
Joined: June 03, 2013 Posts: 2200 Location: seattle
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Posted: Mon Oct 30, 2023 4:51 pm Post subject: Re: how do you remove intake manifold? |
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there should be a phenolic insulator/spacer on each head.
Well, between the head/intake ports & the intake runner. There's usually a sealing material bonded to each side. Helps with heat soak on F.I. buses & vanagones. |
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Wildthings Samba Member
Joined: March 13, 2005 Posts: 50338
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Posted: Mon Oct 30, 2023 6:21 pm Post subject: Re: how do you remove intake manifold? |
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sdogtype2 wrote: |
thanks, got them off today, was wondering if i should clean up the manifold bases as they look dirty.. should i use some like 0000 steel wool to clean the surface?
Also should i use some Edelbrock Gasgacinch Gasket Sealer when i put it back together? |
I usually put them on dry, just letting the gaskets do the sealing. |
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sdogtype2 Samba Member
Joined: March 27, 2010 Posts: 23 Location: seattle
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Posted: Thu Nov 02, 2023 1:56 pm Post subject: Re: how do you remove intake manifold? |
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ok so here is a strange one.. I noticed that my oil light sensor wasn't coming on, checked the wiring and seemed ok. turned key on again light worked fine. started the van and vroom it idled fine but high as it was just cold started no pump throttle etc. Was like wow perhaps my intake gasket replacement just needed time to sit. went back the engine bay and was like holy crap! I had disconnected AFM. I was sitting on top of the compartment. So just the intake hose was connected , no air flow meter no wiring harness.
I reconnected everything started van again and idle was crap and died after a couple of seconds.. So my question is it something to do with this? |
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51125 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Thu Nov 02, 2023 2:08 pm Post subject: Re: how do you remove intake manifold? |
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Leaving the AFM off wouldn't break anything, I suspect your shitty idle is due to previous adjustments to compensate for the vacuum leak you just fixed. _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
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sdogtype2 Samba Member
Joined: March 27, 2010 Posts: 23 Location: seattle
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Posted: Thu Nov 02, 2023 3:55 pm Post subject: Re: how do you remove intake manifold? |
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well shoot i thought that had done the intake manifold correctly but turns out i didn't as it had massive air leaks around #2 . So toss 14 bucks down the drain. s i bought 2 yippie! . When removing the manifold one of the studs came out around #2. the stud was stripped at the top thank goodness not into the head so Ill have to get a new stud and some bolts. That might have been why it wasn't seating correctly. |
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sdogtype2 Samba Member
Joined: March 27, 2010 Posts: 23 Location: seattle
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Posted: Fri Nov 24, 2023 3:50 pm Post subject: Re: how do you remove intake manifold? |
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I'm giving up as Ive tried to do this 3 times and it just get worse each time. Ive sent like 50 on gaskets and for the life of me I just cant do it. |
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Wildthings Samba Member
Joined: March 13, 2005 Posts: 50338
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Posted: Fri Nov 24, 2023 10:08 pm Post subject: Re: how do you remove intake manifold? |
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sdogtype2 wrote: |
I'm giving up as Ive tried to do this 3 times and it just get worse each time. Ive sent like 50 on gaskets and for the life of me I just cant do it. |
Sure some part of the old gaskets isn't still on the heads causing an uneven surface? |
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aeromech Samba Member
Joined: January 24, 2006 Posts: 16961 Location: San Diego, California
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Posted: Fri Nov 24, 2023 11:13 pm Post subject: Re: how do you remove intake manifold? |
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Pull the engine and do the repair outside of the bus _________________ Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound |
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