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Geddy T
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 Posted: Mon Apr 22, 2002 7:24 pm Post subject: |
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For the uninitiated, I've got an '82 931 that I drove from Washington to Arizona and that is still there due to some mechanical issues and botched repairs on my part (although hopefully not for long as I'm going back down to get it next Monday). The problems started when I noticed a loss of overall power while driving through Oregon. So I'm throwing together a whole gang o' parts to bring down there with me to try to get the thing running again. My goal is to replace anything that could possibly have gone bad in hopes of upping the probability that I will fix the problem.
Anyway, while brainstorming possibilities of things that could be wrong in there, I remembered a key detail to the story that I never mentioned when asking for advice here: The other difference in the car that I noticed while driving down other than a loss in power was insanely good gas mileage. I mean up to 40 miles per hour good--no joke. Until that trip, the best mileage I had ever gotten on a tank was 23. But through central California I went 450 miles on a little over 12 gallons and it kept up that way.
Does this put a different spin on the diagnosis? What might cause a CIS injected car to suddenly gain 15 miles per gallon over the course of a single tank of gas? Any ideas? The mechanic down there's diagnosis is a seriously worn cam, but I don't see how the car could get that great mileage with a cam that worn. My other theories before were weak spark from a slipping alternator belt or siezed turbo, but both of those problems run contrary to improved fuel economy also. Maybe I need a new flux capacitor... Or a red Type-R sticker... |
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teo
Joined: 07 Sep 2001
Posts: 637
Location: Hungary, Europe
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| Posted: Mon Apr 22, 2002 8:51 pm Post subject: |
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Check your floor mat. It might have slipped under the accelerator pedal, preventing you to push it to the metal.
PS: it happened to me in my 600ccm 23hp Polski Fiat 126...
http://freepages.autos.rootsweb.com/~antrev/maluch.htm |
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ltgland
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| Posted: Tue Apr 23, 2002 4:47 am Post subject: |
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| the cheap option. maybe your fuel filter is clogged. less flow = better mileage and less power. |
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Benski
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| Posted: Tue Apr 23, 2002 5:10 am Post subject: |
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A severely worn cam would help your gas mileage. Going to a more wild cam puts a dent in your gas mileage so I assume going backwards would increase it.
However, it doesn't make a lot of sense that this would happen suddenly!
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Joes924
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| Posted: Thu Apr 25, 2002 12:52 pm Post subject: |
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Unless the oil tube came off starving the cam
Ill send that cam on the 25th, there geddy.
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