93 SC300 head bolts
10-13-13, 11:42 AM
#1
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93 SC300 head bolts
My mechanic is doing a head gasket repair and probably a valve job. He specializes in Japanese cars and he will send the head out to a machine shop.
My SC is a stock, auto, daily commuter, non-turbo that I need to last as long as possible. 117K right now.
Should we use the ARP head stud kit from Summit Racing, or the W0133-1738784 (OES/OEM?) bolts by Genuine? Or is the Beck/Arney set enough?
Also, do I need to check into the machine shop that will do the valve job, or should any qualified shop do? Do I need to request that they use OEM parts or what?
Help, I need this car for work
Thanks
My SC is a stock, auto, daily commuter, non-turbo that I need to last as long as possible. 117K right now.
Should we use the ARP head stud kit from Summit Racing, or the W0133-1738784 (OES/OEM?) bolts by Genuine? Or is the Beck/Arney set enough?
Also, do I need to check into the machine shop that will do the valve job, or should any qualified shop do? Do I need to request that they use OEM parts or what?
Help, I need this car for work
Thanks
10-16-13, 09:06 PM
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distributor o-ring, o2 sensors
Thanks for the help!
Can anyone tell me how I can tell if I need to replace the distributor o-ring?
And should I replace the two upstream Oxygen sensors too with the head gasket job? 117K on the car
Can anyone tell me how I can tell if I need to replace the distributor o-ring?
And should I replace the two upstream Oxygen sensors too with the head gasket job? 117K on the car
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10-17-13, 01:13 PM
#11
the quality of the gasket, and unlike oem, these gaskets can be reused, harder material and yes thicker.
10-17-13, 02:22 PM
#13
10-17-13, 02:26 PM
#14
They are all metal head-gaskets, all made from the same material.
They are all the same hardness unless you can actually prove otherwise they are all metal gaskets.
The ge is a 1 layer metal, the gte is a multi-layer metal.
all the gaskets are viton coated from the factory which is what provides the awesome sealing power.
Did you know that after the 7m BHG disasters toyota re-engineered specifically the headgasket to seal under very harsh conditions, which is mainly the super special rubber viton coating that comes on all the toyota gaskets (and aftermarket now for that matter).
that design has been copied over and over again now, and believe it or not the aftermarkets are just a copy of the toyota design.
they say you can reuse aftermarket ones, but if you have done it you would know you have to completely remove all of the viton rubber coating, and then use an aftermarket coating which is not always as good and cannot seal imperfections as well as the original coating, which is why the original coating was invented in the first place, because many saw how long a 7m lasted with a MHG and a copper spray after having a BHG, and the answer is a while but not as long as the newer coating.
you can also remove the rubber viton coating from the oem heagasket and re-use it.
it has nothing to do with aftermarket or oem made, in fact many of racing ones originate from the same plants as the oem ones. even the knock off ones look identical to the oem ones, but some may have less coating than factory.
not trying to be harsh here but lets go on what we actually know and not what the aftermarket company may say, because i would find it hard pressed to believe that toyota did not use the best alloy possible when making a single layer GE headgasket that has been shown recently to hold 600hp on pump gas @ 10:1 compression, and 800+ on e85 @ 10:1 compression, and for the gte headgasket which is the only one with different layers in it holds even more which is mostly due to the compression because the single layer ge metal headgasket is arguably the strongest one you can run because it has less layers = less places to leak.
They are all the same hardness unless you can actually prove otherwise they are all metal gaskets.
The ge is a 1 layer metal, the gte is a multi-layer metal.
all the gaskets are viton coated from the factory which is what provides the awesome sealing power.
Did you know that after the 7m BHG disasters toyota re-engineered specifically the headgasket to seal under very harsh conditions, which is mainly the super special rubber viton coating that comes on all the toyota gaskets (and aftermarket now for that matter).
that design has been copied over and over again now, and believe it or not the aftermarkets are just a copy of the toyota design.
they say you can reuse aftermarket ones, but if you have done it you would know you have to completely remove all of the viton rubber coating, and then use an aftermarket coating which is not always as good and cannot seal imperfections as well as the original coating, which is why the original coating was invented in the first place, because many saw how long a 7m lasted with a MHG and a copper spray after having a BHG, and the answer is a while but not as long as the newer coating.
you can also remove the rubber viton coating from the oem heagasket and re-use it.
it has nothing to do with aftermarket or oem made, in fact many of racing ones originate from the same plants as the oem ones. even the knock off ones look identical to the oem ones, but some may have less coating than factory.
not trying to be harsh here but lets go on what we actually know and not what the aftermarket company may say, because i would find it hard pressed to believe that toyota did not use the best alloy possible when making a single layer GE headgasket that has been shown recently to hold 600hp on pump gas @ 10:1 compression, and 800+ on e85 @ 10:1 compression, and for the gte headgasket which is the only one with different layers in it holds even more which is mostly due to the compression because the single layer ge metal headgasket is arguably the strongest one you can run because it has less layers = less places to leak.
Last edited by Ali SC3; 10-17-13 at 02:32 PM.