GMCforum: GMCnet » OEM intake manifolds and cracks, symptoms?

Home » Public Forums » GMCnet » OEM intake manifolds and cracks, symptoms?

Show: Today's Messages :: Polls :: Message Navigator

Re: OEM intake manifolds and cracks, symptoms? [message #335676 is a reply to message #335480]

Thu, 26 July 2018 17:34

Larry

Messages: 2875
Registered: January 2004
Location: Menomonie, WI

Karma:

Senior Member

Don't know if anyone has mentioned this yet, but here goes.

Take your manifold to your nearest foundry. Put a block-off plate on one or the other crossover ports and have them pour it full of aluminum. See this:

http://www.gmcmhphotos.com/photos/g4571-pouring-the-455-crossover.html

It did two things. Blocked the crossover, and even though the manifold did not have cracks, it would seal manifold cracks. Think I paid $25 or so. Still put the SS plates on the ports to keep exhaust gasses from reaching the aluminum. Didn't think it would be a problem, but did it anyway as a safety measure. JWID

Larry

78 Royale w/500 Caddy
Menomonie, WI.

[Updated on: Thu, 26 July 2018 17:35]

Report message to a moderator

[Message index]

		OEM intake manifolds and cracks, symptoms? By: GMC2000 on Mon, 23 July 2018 00:34
		Re: OEM intake manifolds and cracks, symptoms? By: jhbridges on Mon, 23 July 2018 07:37
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: USAussie on Mon, 23 July 2018 08:41
		Re: OEM intake manifolds and cracks, symptoms? By: GatsbysCruise on Mon, 23 July 2018 10:32
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: James Hupy on Mon, 23 July 2018 11:11
		Re: OEM intake manifolds and cracks, symptoms? By: GMC2000 on Mon, 23 July 2018 22:26
		Re: OEM intake manifolds and cracks, symptoms? By: pjburt on Mon, 23 July 2018 23:15
		Re: OEM intake manifolds and cracks, symptoms? By: GMC2000 on Wed, 25 July 2018 00:43
		Re: OEM intake manifolds and cracks, symptoms? By: jhbridges on Wed, 25 July 2018 08:17
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: jimk on Wed, 25 July 2018 08:49
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: sgltrac on Wed, 25 July 2018 12:54
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: jimk on Wed, 25 July 2018 13:36
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: sgltrac on Wed, 25 July 2018 14:23
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: jimk on Wed, 25 July 2018 15:37
		Re: OEM intake manifolds and cracks, symptoms? By: JohnL455 on Thu, 26 July 2018 09:26
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: jimk on Thu, 26 July 2018 09:32
		Re: OEM intake manifolds and cracks, symptoms? By: Larry on Thu, 26 July 2018 17:34
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: Ken Henderson on Thu, 26 July 2018 18:07
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: Richard Denney on Thu, 26 July 2018 19:44
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: sgltrac on Thu, 26 July 2018 20:44
		Re: [GMCnet] OEM intake manifolds and cracks, symptoms? By: James Hupy on Thu, 26 July 2018 18:00

Previous Topic:	[GMCnet] FMCA Roadside rescue,problem
Next Topic:	FMCA Roadside Rescue problem

Goto Forum:

-=] Back to Top [=-

Current Time: Sun May 19 09:47:36 CDT 2024

Total time taken to generate the page: 0.00470 seconds