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Apr
15
comment Reviving a vehicle that has been idle for a long time
What I've done when bringing an engine "out of retirement" is to remove the plugs, spray some WD-40 (any light oil would probably work) into the cylinders, wait five minutes to let it work its way down to the rings, then crank the engine (with the plugs still out) until I see good oil pressure (usually just a few seconds). Then I replace the plugs and start the engine normally.
Apr
15
comment Reviving a vehicle that has been idle for a long time
If you take your car to a shop, they should be able to pump the old gas out of the tank and put some fresh gas in. They may charge you for "material disposal", but they at least have the facilities to take care of it properly.
Apr
15
comment Pros and cons lowering sedan?
Are you sure your car has one? From what I can tell, only midsize to large trucks use torsion keys for suspension adjustments. For most cars, lowering is done by replacing (or cutting, if you like to live dangerously) the springs.
Apr
12
comment What makes two-stroke engines less fuel-efficient than four-strokes?
@IhavenoideawhatI'mdoing: I don't think we have any real data to go on. Engine inertia is going to be a negligible factor in motorcycle MPG, so if you really want to measure it you're going to have to run two similar unloaded engines at the same RPM and measure their fuel consumption. I think Anarach's assertion that a two-stroke consumes twice the fuel twice as often is wrong. If the cylinder size and compression ratio are the same, then the fuel/air mixture will be the same, not 2x.
Apr
11
answered Is my 1999 blazer having transmission problems?
Apr
11
comment What makes two-stroke engines less fuel-efficient than four-strokes?
@IhavenoideawhatI'mdoing: I think a four-stroke engine has considerably more inertia, due to the valve train, and it's not simple rotational inertia, either.
Apr
11
comment What makes two-stroke engines less fuel-efficient than four-strokes?
I'd also add that for small engines, the weight reduction and ability to operate at high RPMs are also important factors. The lack of low-end torque is also less of a disadvantage for a lawn mower than it is for a car.
Apr
11
comment Making a custom exhaust
I have also heard stories (albeit with regards to racing engine operating at high RPMs) of engines getting bent valves from drawing cold air into the exhaust header, so there may be a possibility of engine damage if you do so. But I imagine the noise will convice you pretty quickly that it's not a good idea!
Apr
7
comment Battery Light Won't Go Off Since Changing Battery
Did you check the tension in your alternator belt? If not, might be worth a try to tighten it up and see if the problem goes away again. If not, maybe take the alternator to the auto parts store and get it tested. If it's the original one, it may be marginal at this point.
Apr
7
comment Car rolls back when braking at low speed on 14 ' Audi S4 (B8.5)
By "jerks a bit backwards", do you mean it rotates backwards, or it moves backwards in the wheel well?
Apr
7
comment 06 Solstice LE5 DTCs
Have you checked the charging voltage? If it's high your battery will overcharge, and you may not notice until the electrolyte boils away. High voltage can also trigger false codes.
Apr
7
comment For 2 identical car models, 1 being cabriolet, which consumes less fuel?
+1 for pointing out the weight difference, but -1 for claiming the roof down won't affect mileage. I am kind of disappointed that manufacturers don't list separate top-up and top-down mileage figures, because they do vary considerably.
Apr
7
comment Alternator isn't charging battery properly. Replace or swap regulator only?
@KevinEvans: Could be you just had some corrosion on a connector, and your testing shifted things around enough to get around it. If so, your problem will probably come back in a few months. If it does, I'd recommend cleaning both your battery terminals and the alternator output lead connection, and reassembling everything with some dielectric grease to keep things clean going forward.
Apr
7
revised Why does my car jerk and jump when I stop?
Spelling and punctuation
Apr
7
awarded  Custodian
Apr
5
comment semi loud growling noise at all speeds
How many miles on the engine? Have you noticed a drop in fuel economy?
Apr
5
answered Clutch smell after botched attempt at accelerating on a ramp
Apr
5
answered Is there something that can be applied to electrical connections to prevent rust and corrosion?
Mar
24
comment Disc brakes don't stop!
I'd just adjust the proportioning valve until your rear brakes started to work. Then you can take it out and see if more/less bias is needed. If you've got huge rear tires and small front ones then you'll probably want to bias it more towards the rear than you would in a normal car. OTOH if you've got normal-sized wheels on the front then go ahead and keep most of the bias up there.
Mar
24
answered bearing noise soon after tire replacement?