riser torque

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   Help. I'm trying to find the torque spec. for 1992 PCM 351 riser bolts to exhaust manifold. Also, do I need to put any gausket sealer on the new gausket? Thanks

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john beck Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: April-29-2012 Location: Santa Barbara,C Status: Offline Points: 3	Post Options Post Reply Quote john beck Report Post Thanks(0) Quote Reply Topic: riser torque Posted: August-11-2012 at 2:23pm
	Help. I'm trying to find the torque spec. for 1992 PCM 351 riser bolts to exhaust manifold. Also, do I need to put any gausket sealer on the new gausket? Thanks

8122pbrainard Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040	Post Options Post Reply Quote 8122pbrainard Report Post Thanks(0) Quote Reply Posted: August-11-2012 at 3:50pm
	John, Welcome to CCfan. SAE torque specs of bolts are available on line. Are you putting SS bolts back in? It makes a difference. OK, when it comes down to gasket compounds, I'm very old school. I do not like RTV's and always use Permatex non hardening. No matter what you use, the key to a good seal will be the mating surfaces MUST be flat and smooth. If not, they may even need a dust cut on the mill?
	54 Atom 77 Tique 64 X55 Dunphy Keep it original, Pete <

john beck Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: April-29-2012 Location: Santa Barbara,C Status: Offline Points: 3	Post Options Post Reply Quote john beck Report Post Thanks(0) Quote Reply Posted: August-12-2012 at 12:08am
	Thanks Pbrainard. I tried google sites looking for torque on the riser. What website would you recommend? Thanks again.

8122pbrainard Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040	Post Options Post Reply Quote 8122pbrainard Report Post Thanks(0) Quote Reply Posted: August-12-2012 at 7:32am
	John, Google "SAE bolt torque". Also, you never said if you are using SS bolts. It's a good idea plus I recommend anti seize but understand that using it will alter your torque.
	54 Atom 77 Tique 64 X55 Dunphy Keep it original, Pete <

kapla Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: March-27-2008 Location: BA, Argentina Status: Offline Points: 6148	Post Options Post Reply Quote kapla Report Post Thanks(0) Quote Reply Posted: August-13-2012 at 12:43am
	Definetely you want the mating surfaces to be REAL FLAT!... any rust in the surface is a potencial leak point.... I speak from personal experience...new gaskets, cleaned the surface and assembled, hundred of hours later, found water in cylinder...it was the manifold leaking.... A head gasket and a trip to the machine shop, got me again in the water. Definetley go SS bolts!..also replace the allen ones that hooks the lower manifold to the head...
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riser torque

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