Rubber corner seal plug
08-19-02, 11:19 PM
#1
standard combustion
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Rubber corner seal plug
I've just heard mixed signals from some about rubber corner seal plugs.
I just want basic info on what people know about them. Why would someone not use them in a engine that has the spot in the corner seal for them? What would happen if you did not use them?
I just want basic info on what people know about them. Why would someone not use them in a engine that has the spot in the corner seal for them? What would happen if you did not use them?
08-20-02, 08:15 AM
#3
Re: Rubber corner seal plug
Originally posted by WackyRotary
I've just heard mixed signals from some about rubber corner seal plugs.
I just want basic info on what people know about them. Why would someone not use them in a engine that has the spot in the corner seal for them? What would happen if you did not use them?
I've just heard mixed signals from some about rubber corner seal plugs.
I just want basic info on what people know about them. Why would someone not use them in a engine that has the spot in the corner seal for them? What would happen if you did not use them?
08-20-02, 10:55 AM
#4
Old [Sch|F]ool
They're not rubber, they're Viton.
When I tore down the '83 engine, they were in good shape. They went back in. When I took the engine apart 23,000 8000rpm+ drvving miles later, all six corner plugs were MISSING. Whoops.
When I tore down the '83 engine, they were in good shape. They went back in. When I took the engine apart 23,000 8000rpm+ drvving miles later, all six corner plugs were MISSING. Whoops.
08-20-02, 11:16 AM
#5
standard combustion
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When I tore down the '83 engine, they were in good shape. They went back in. When I took the engine apart 23,000 8000rpm+ drvving miles later, all six corner plugs were MISSING. Whoops.
I figure they are there to keep carbon from getting under the corner seal springs and apex seal's springs. Since a engine will run fine without them there that is.
08-20-02, 05:34 PM
#6
Old [Sch|F]ool
I think they're there to fill the dead space and provide a cushion in case the apex seal starts bouncing. (Kinda like a shock absorber) Considering how often I revved into the seal-chatter range it's no wonder they all went AWOL. 
crispeed and other engine builders don't bother putting them in. The plug-type corner seals are better than the "solid" corner seals even when you omit the Viton plug, since the plug-type seals are more flexible. More flexible means that when the seal expands in its bore (from the same combustion pressure that forces the apex seals out of their slots) they will not crack. Solid corner seals WILL crack.
crispeed and other engine builders don't bother putting them in. The plug-type corner seals are better than the "solid" corner seals even when you omit the Viton plug, since the plug-type seals are more flexible. More flexible means that when the seal expands in its bore (from the same combustion pressure that forces the apex seals out of their slots) they will not crack. Solid corner seals WILL crack.
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08-20-02, 06:23 PM
#8
Old [Sch|F]ool
Viton... that's what A/C o-rings are made of, right?
My engine kit was strangely missing many of the O-rings I needed so I raided the shop's A/C o-ring supply
My engine kit was strangely missing many of the O-rings I needed so I raided the shop's A/C o-ring supply
08-20-02, 10:14 PM
#9
standard combustion
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crispeed and other engine builders don't bother putting them in. The plug-type corner seals are better than the "solid" corner seals even when you omit the Viton plug, since the plug-type seals are more flexible
