I know some of this has been covered before, but at the risk of being beat upon, let me re-inquire and add another related question:
1) I purchased one of the 1/8" thick graphite Intake/Exhaust Manifold Gaskets from SOR. I don't think the list it anymore because I can't find it on their site, at least not for a '78 FJ40 (It was a 044-01C which is supposed to be for the later model FJ40's)
So the holes on that gasket look like the one below. Notice that the openings don't have any seal between center exhaust cylinder ports. My question is, IS THAT A PROBLEM? The think gasket that came with the headers has gasket has a seal between those ports, but this one leaves them open. I notice that SOR is selling a new Aftermarket Gasket for the later model 2F engine that looks exactly the same (on the right). Should I assume this suggests it fine? Do you lose any power with this opening or does damage the pipes in anyway?
I prefer to use the thick gasket, but I can always use the thinner one if that will be better.\
2) The redundant question involves whether to use a copper sealant or not? I know a lot of folks say to use it. Can I just ask one last time for advice, and what to use if you recomment it? I've had that intake and exhaust faces surfaced so they should seat pretty flush.
Thanks for the advice!!
1) I purchased one of the 1/8" thick graphite Intake/Exhaust Manifold Gaskets from SOR. I don't think the list it anymore because I can't find it on their site, at least not for a '78 FJ40 (It was a 044-01C which is supposed to be for the later model FJ40's)
So the holes on that gasket look like the one below. Notice that the openings don't have any seal between center exhaust cylinder ports. My question is, IS THAT A PROBLEM? The think gasket that came with the headers has gasket has a seal between those ports, but this one leaves them open. I notice that SOR is selling a new Aftermarket Gasket for the later model 2F engine that looks exactly the same (on the right). Should I assume this suggests it fine? Do you lose any power with this opening or does damage the pipes in anyway?
I prefer to use the thick gasket, but I can always use the thinner one if that will be better.\
2) The redundant question involves whether to use a copper sealant or not? I know a lot of folks say to use it. Can I just ask one last time for advice, and what to use if you recomment it? I've had that intake and exhaust faces surfaced so they should seat pretty flush.
Thanks for the advice!!