The Ford Barn

pwh · 12-13-2011, 02:37 PM

I am about ready to put my intake and exhaust manifolds back together and button up another project. My question is what goes between the two? There appeared to be some kind of material between them but not much of anything was left. It seems to me there should be some kind of insulation here and maybe there is a gasket or something that I'm not aware of out there.

Thanks ahead
Phil

Purdy Swoft · 12-13-2011, 02:44 PM

Nothing goes between the manifolds. It should be metal to metal. insulation would not be good, the intake needs to warm, especially with ethanol adultrated gas.

CarlG · 12-13-2011, 02:46 PM

There isn't anything that goes between them. It's mainly meant for heat transfer. It is usually recomended that they be loosely fitted until they are torqued down against the block.

(Purdy beat me to it!)

pwh · 12-13-2011, 05:03 PM

Thanks guys

What I thought was material was probably just rust scale. I was thinking about keeping the fuel cool and not about warming.

Phil

glenn in camino · 12-13-2011, 08:59 PM

There isn't anything between the manifolds, but its a good idea to bolt them together and have the two surfaced as one assembly. w

pat in Santa Cruz · 12-13-2011, 11:21 PM

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When bolting them together prior to surfacing, place the manifolds loosely bolted together on the studs to get all the slots lined up, then tighten the two bolts that clamp the manifolds together. Then remove the unit for surfacing

Drive Shaft Dave · 12-16-2011, 10:41 PM

I would suggest that you at least once A year take the two bolts out and put some never seise on them, that way you will never have to worry about it.Excersising these bolts will make a big difference down the road. The two bolts i refer to are the two in the middle, after some time they fuze together taking them apart from time to time help to keep the bolts from freezing together.

Brentwood Bob · 12-17-2011, 03:21 PM

drive shaft daves suggestion has an alternative. if you choose to do nothing, then someday you may have to rework the exhaust manifold when the holes strip out, or the bolts break off. I have drilled out the exhaust manifold, rethreaded for a 1/2 inch thread stock plug, then redrilled a centered hole for original fastner. Real tedious. Bob

12-13-2011, 02:37 PM	#1
pwh Member Join Date: May 2010 Location: Cross Plains, TN Posts: 32	Manifolds I am about ready to put my intake and exhaust manifolds back together and button up another project. My question is what goes between the two? There appeared to be some kind of material between them but not much of anything was left. It seems to me there should be some kind of insulation here and maybe there is a gasket or something that I'm not aware of out there. Thanks ahead Phil

12-13-2011, 02:44 PM	#2
Purdy Swoft Senior Member Join Date: May 2010 Location: Alabama Posts: 8,099	Re: Manifolds Nothing goes between the manifolds. It should be metal to metal. insulation would not be good, the intake needs to warm, especially with ethanol adultrated gas.

12-13-2011, 02:46 PM	#3
CarlG Senior Member Join Date: Nov 2010 Location: Anchorage, Alaska Posts: 9,115	Re: Manifolds There isn't anything that goes between them. It's mainly meant for heat transfer. It is usually recomended that they be loosely fitted until they are torqued down against the block. (Purdy beat me to it!)

12-13-2011, 05:03 PM	#4
pwh Member Join Date: May 2010 Location: Cross Plains, TN Posts: 32	Re: Manifolds Thanks guys What I thought was material was probably just rust scale. I was thinking about keeping the fuel cool and not about warming. Phil

12-13-2011, 08:59 PM	#5
glenn in camino Senior Member Join Date: May 2010 Location: Camino, CA. Posts: 3,086	Re: Manifolds There isn't anything between the manifolds, but its a good idea to bolt them together and have the two surfaced as one assembly. w

12-13-2011, 11:21 PM	#6
pat in Santa Cruz Senior Member Join Date: May 2010 Location: santa cruz, calif Posts: 2,011	Re: Manifolds Sponsored Links (Register now to hide all advertisements) When bolting them together prior to surfacing, place the manifolds loosely bolted together on the studs to get all the slots lined up, then tighten the two bolts that clamp the manifolds together. Then remove the unit for surfacing

12-16-2011, 10:41 PM	#7
Drive Shaft Dave Senior Member Join Date: Dec 2011 Location: New hope Minnesota Posts: 742	Re: Manifolds I would suggest that you at least once A year take the two bolts out and put some never seise on them, that way you will never have to worry about it.Excersising these bolts will make a big difference down the road. The two bolts i refer to are the two in the middle, after some time they fuze together taking them apart from time to time help to keep the bolts from freezing together. Last edited by Drive Shaft Dave; 12-16-2011 at 11:02 PM.

12-17-2011, 03:21 PM	#8
Brentwood Bob Senior Member Join Date: May 2010 Location: brentwood, ca Posts: 4,245	Re: Manifolds drive shaft daves suggestion has an alternative. if you choose to do nothing, then someday you may have to rework the exhaust manifold when the holes strip out, or the bolts break off. I have drilled out the exhaust manifold, rethreaded for a 1/2 inch thread stock plug, then redrilled a centered hole for original fastner. Real tedious. Bob