The Ford Barn

Dennis/CT · 05-22-2013, 01:30 PM

Hi guys, I will be installing my intake and exhaust manifolds soon. Machine work is done. The question is, do you bolt together the intake and exhaust manifold then install it on the engine then torque the unit to the engine, or, do you loosely tighten the intake and exhaust together then torque it to the engine then tighten the intake to exhaust bolts ? Thanks to all that reply. Dennis

J Franklin · 05-22-2013, 01:36 PM

I would loosely bolt the two and then tighten the manifold to block nuts up to about 30# even and then snug up the two cap screws.

Rock Hornbuckle · 05-22-2013, 01:38 PM

I prefer to loosely assemble the two manifolds together, then install/torque on engine, then tighten the two bolts on the manifolds, but not too tight. I also use some anti-sieze on the two bolts.

Pilotdave · 05-22-2013, 01:47 PM

I've done this once. I securely tightened the bolts holding the intake and exhaust manifolds together, had them machined as a unit, and then bolted it to the engine. This presumed that the manifold surface on the engine was flat; I suppose this might not always be the case.

Terry, NJ · 05-22-2013, 02:11 PM

Bolt them together tightly, grind them till both the intake and exhaust are resurfaced.
bolt on engine as one piece.
Terry

Aok · 05-22-2013, 06:04 PM

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I bolt together loosely as that help them to align correctly with the block. Then tighten the studs once snug I do a final tighten on the 2 connecting bolts. I torque to about 20 -25 reck after some drive time

05-22-2013, 01:30 PM	#1
Dennis/CT Senior Member Join Date: May 2010 Location: West Haven, CT Posts: 143	Install intake and exhaust manifolds Hi guys, I will be installing my intake and exhaust manifolds soon. Machine work is done. The question is, do you bolt together the intake and exhaust manifold then install it on the engine then torque the unit to the engine, or, do you loosely tighten the intake and exhaust together then torque it to the engine then tighten the intake to exhaust bolts ? Thanks to all that reply. Dennis

05-22-2013, 01:36 PM	#2
J Franklin Senior Member Join Date: May 2010 Location: Oregon Posts: 5,959	Re: Install intake and exhaust manifolds I would loosely bolt the two and then tighten the manifold to block nuts up to about 30# even and then snug up the two cap screws.

05-22-2013, 01:38 PM	#3
Rock Hornbuckle Senior Member Join Date: Mar 2011 Location: Noxon Montana Posts: 532	Re: Install intake and exhaust manifolds I prefer to loosely assemble the two manifolds together, then install/torque on engine, then tighten the two bolts on the manifolds, but not too tight. I also use some anti-sieze on the two bolts. __________________ '31 Fordor Deluxe 2W Briggs 170-B / blackwalls '41 Fordor Deluxe / 2-duece flattie '66 1/2 Dodge Charger '14 100th Anniversary Challenger Limited Edition. Semper Fidelis

05-22-2013, 01:47 PM	#4
Pilotdave Senior Member Join Date: Oct 2010 Location: Grafton, MA Posts: 1,226	Re: Install intake and exhaust manifolds I've done this once. I securely tightened the bolts holding the intake and exhaust manifolds together, had them machined as a unit, and then bolted it to the engine. This presumed that the manifold surface on the engine was flat; I suppose this might not always be the case.

05-22-2013, 02:11 PM	#5
Terry, NJ Senior Member Join Date: May 2010 Location: Bucks Co, Pa Posts: 3,740	Re: Install intake and exhaust manifolds Bolt them together tightly, grind them till both the intake and exhaust are resurfaced. bolt on engine as one piece. Terry

05-22-2013, 06:04 PM	#6
Aok Senior Member Join Date: Jan 2012 Location: Tx Posts: 502	Re: Install intake and exhaust manifolds Sponsored Links (Register now to hide all advertisements) I bolt together loosely as that help them to align correctly with the block. Then tighten the studs once snug I do a final tighten on the 2 connecting bolts. I torque to about 20 -25 reck after some drive time