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Tuesday, 7 April 2015

Cars & Transportation: Maintenance & Repairs: “Question: I got a estimate for a used motor and installation1,875 from a certified mechanic. Its finished its going to be 2966.75. What do I do?” plus 5 more

Cars & Transportation: Maintenance & Repairs: “Question: I got a estimate for a used motor and installation1,875 from a certified mechanic. Its finished its going to be 2966.75. What do I do?” plus 5 more


Question: I got a estimate for a used motor and installation1,875 from a certified mechanic. Its finished its going to be 2966.75. What do I do?

Posted: 07 Apr 2015 05:24 PM PDT

Question: Should i cut my ac belt on my 1977 f150or let it break off?

Posted: 07 Apr 2015 05:12 PM PDT

Assuming that belt only drives the AC?

Then take it off. If you let it break the busted belt could fly around inside the engine bay and damage something else. Wiring, radiator hose etc.

It's might just harmlessly fall out the bottom, or it could whip around the engine like a mutant weed whacker and break something important.

If the belt also powers your brake booster, power steering or alternator, then you need to get a new one ASAP.

Question: What determines the power of an engine?

Posted: 07 Apr 2015 04:52 PM PDT

Main reason is displacement. The V8 engine has more cylinders, so that's more burning fuel to make power.

If you built a 2 litre / 4 cyl engine, a 3 litre / 6 cly engine, and a 4 litre V8 engine. Assume the actual cylinder design is the same for each engine. Then the V8 is going to have 100% more power than the 4, and 50% more than the 6 isn't it.

But it's not actually to do with the magic number 8, it's about having greater displacement. If you built a 2 litre V8 it would be more like the 2 litre / 4 cyl engine.

Other factors do come into play. How many RPM the engine can spin at, and forced induction (turbos etc) So you could take your 2 litre engine and strengthen it to run at 9,000 rpm instead of 6,000. You could also add a turbo with 15 lb of boost. Now you are going to be taking in a similar amount of air / fuel each second to the standard V8, and should get similar power from the, at least for a while.

Question: Car starts then dies?

Posted: 07 Apr 2015 04:49 PM PDT

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