Stop-Start Summer Racing
02-15-12, 12:51 AM
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Stop-Start Summer Racing
Bought an 86 with a seized engine and have intentions of freeing it up and racing it for as long as I can this season.
A couple of questions, are there any problems with stopping and starting a rotary between autocross runs in 90°F weather?
I always turned my Saab off between runs simply because it would get uncomfortably close to overheating if I left it idling for the 15 minutes to an hour between runs.
A couple of questions, are there any problems with stopping and starting a rotary between autocross runs in 90°F weather?
I always turned my Saab off between runs simply because it would get uncomfortably close to overheating if I left it idling for the 15 minutes to an hour between runs.
02-15-12, 10:22 AM
#2
Seized engines typically have some sort of rust or broken component that is wedging it in place. If you do free it up, there's a good chance you could damage the housing due to the debris in the chamber. If it comes through unscathed, run it and have a blast.
As for your actual question, there isn't any issue with a rotary starting a few extra times a day. It is a production car after all. Hot start problems are common but are often due to dirty injectors (easy fix) or low compression (engine needs a rebuild). Also, a car that overheats while idling indicates a much more serious malfunction.
As for your actual question, there isn't any issue with a rotary starting a few extra times a day. It is a production car after all. Hot start problems are common but are often due to dirty injectors (easy fix) or low compression (engine needs a rebuild). Also, a car that overheats while idling indicates a much more serious malfunction.
02-15-12, 11:10 AM
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Well, should I tear it down just to try to avoid tearing the housings up? The previous owner said it ran but burned oil when parked, then it sat for 13 years...
The rotors looked like they had more carbon then rust on them. But the plugs did have rust on them.
The rotors looked like they had more carbon then rust on them. But the plugs did have rust on them.
02-15-12, 12:14 PM
#4
Hopefully someone that's had more experience un-freezing engines can chime in. 13 years is a long time to sit, but oil seal failure is probably the best scenario. You won't know if the hard parts are good enough for a rebuild until it is already opened up. I think the price point of this car is a large part of the appeal, so personally, I'd put a little atf onto as many seal surfaces as I can get to, let it sit, and then try breaking it loose. S4 na engines aren't rare, so a replacement shouldn't be too hard to find.
02-15-12, 01:07 PM
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I filled the intake/exhaust and sparkplugs with ATF on Friday and on Sunday I was standing on the 3 foot long breaker bar to no avail (can someone say over-torqued bolt?)
I'll keep lurking here and see if I can find some magic remedy before I really start shopping for a soft seal kit.
I'll keep lurking here and see if I can find some magic remedy before I really start shopping for a soft seal kit.
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