Stuck seal snake oil du jour?
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Stuck seal snake oil du jour?
I have an S5 TII that was in storage for an indeterminate period. It appears to be a JDM motor, anyway the deal is it starts and runs quickly, i.e it's not flooded but it does idle rough and is down on power. I have a check box I built myself which does give codes when the various sensors are unplugged, it has no codes active when the engine is running and everything's plugged in.
So there's a real good chance this is due to the apex and side seals sticking. The motor does not overheat and holds great oil pressure, there are no oil or coolant leaks so I'd like to not tear it apart if I don't have to.
In the past I've used ATF and WD40 on so called 'hopeless' motors with reasonable success, just wondering if there's anything new out there?
So there's a real good chance this is due to the apex and side seals sticking. The motor does not overheat and holds great oil pressure, there are no oil or coolant leaks so I'd like to not tear it apart if I don't have to.
In the past I've used ATF and WD40 on so called 'hopeless' motors with reasonable success, just wondering if there's anything new out there?
#2
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I have had pretty good success just spraying a bit of wd40 in there through the leading spark plug hole and rotating by hand to spread the stuff out. ATF will tear stuff up after a while as described by AaronCake.
Put a bit in, rotate a bit more an rotate. Remove the comp and fuel pump fuze and just let it rotate with the starter, let it set for 15 minutes and repeat 2 more times. Reconnect everything and take it for a nice long drive and see if anything changes. If this does not fix it the seals may require a good "massage" through the exhaust port.
Put a bit in, rotate a bit more an rotate. Remove the comp and fuel pump fuze and just let it rotate with the starter, let it set for 15 minutes and repeat 2 more times. Reconnect everything and take it for a nice long drive and see if anything changes. If this does not fix it the seals may require a good "massage" through the exhaust port.
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Regular old motor oil typically works very well for freeing stuck seals. It does dissolve carbon quite well if given enough time.
Removing An RX-7 From Storage, Dealing With Improper Storage
Removing An RX-7 From Storage, Dealing With Improper Storage
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Regular old motor oil typically works very well for freeing stuck seals. It does dissolve carbon quite well if given enough time.
Removing An RX-7 From Storage, Dealing With Improper Storage
Removing An RX-7 From Storage, Dealing With Improper Storage
I checked for rust through the plug holes best as possible, didn't see any. I lubed it before starting, also ran it on premix just to be on the safe side. Which brings me to this question: if I suspect stuck seals, should I just liberally oil it through the plug holes and let it sit, or ?
I need to give it an 'Italian tuneup' also, but the car is not even faintly street legal and there's no place nearby to do that.
Last edited by RX744CSP; 02-09-14 at 03:02 PM.
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