A
Anonymous
Guest
Bought this old work van the other day, after giving it quite a long test-drive. But a little way into the 40-mile drive hope, something under the hood began shrieking, progressively getting worse. Thought it might have come from the serpentine poly-V-belt (which the owner said was recently changed), and I did think I detected a very faint rubber smell coming from under the doghouse. I kept going for a while, but then a new noise was added, which sounded like a bearing, presumably from some component driven by the belt. Not wishing my new purchase to catch fire and burn down alongside the freeway, I exited, parked it on a side street, and later picked it up with a trailer.
If you have one of these later, fuel-injected Econolines, you know that you cannot see the engine under the hood for the big plastic air-cleaner and other stuff. but while waiting for rescue, I was able to get a hand on the tensioner/idler pulley for the belt. It was not hot, nor was the power steering unit.
I had a little time yesterday afternoon, and took off the air-cleaner and support bracket. I removed the serpentine belt, fired up the engine momentarily, and it sounded fine, no shrieking noise. With the engine shut off, by hand I twirled each of the items driven by the belt, to feel for a bad bearing. Idler, power steering, alternator, water pump and fan clutch, and what I take to be an air-injection pump that sits below the alternator. Everything seemed to turn all right, and feel okay, with the possible exception of that air pump. The water pump pulley, which is driven by the smooth back surface of the serpentine belt, was very shiny, as if the belt had been skidding on it, yet the pump seemed to turn freely, by hand, and I couldn't detect any slop when trying to wiggle the shaft side-to-side on any of these items .
I would eliminate the air pump and its plumbing anyway, so my question for y'all is, can I simply get a shorter serpentine belt that bypasses the air pump, and run the car that way without the computer being confused by this omission (I assume there's a computer somewhere in all of that mess of stuff)?? Were some of these EFI vans sold without an air injection system? If so, and if you have a belt number HANDY, I could use that, too.
I'll fire up the engine with the new, shorter belt, omitting the air pump. If I again get a noise when I rev it up, I'm going to put in a new water pump (not a bad idea anyway), and see what that does . . .
All I have to work with at the moment is a Chiltons manual, which is pretty poor.
If you have one of these later, fuel-injected Econolines, you know that you cannot see the engine under the hood for the big plastic air-cleaner and other stuff. but while waiting for rescue, I was able to get a hand on the tensioner/idler pulley for the belt. It was not hot, nor was the power steering unit.
I had a little time yesterday afternoon, and took off the air-cleaner and support bracket. I removed the serpentine belt, fired up the engine momentarily, and it sounded fine, no shrieking noise. With the engine shut off, by hand I twirled each of the items driven by the belt, to feel for a bad bearing. Idler, power steering, alternator, water pump and fan clutch, and what I take to be an air-injection pump that sits below the alternator. Everything seemed to turn all right, and feel okay, with the possible exception of that air pump. The water pump pulley, which is driven by the smooth back surface of the serpentine belt, was very shiny, as if the belt had been skidding on it, yet the pump seemed to turn freely, by hand, and I couldn't detect any slop when trying to wiggle the shaft side-to-side on any of these items .
I would eliminate the air pump and its plumbing anyway, so my question for y'all is, can I simply get a shorter serpentine belt that bypasses the air pump, and run the car that way without the computer being confused by this omission (I assume there's a computer somewhere in all of that mess of stuff)?? Were some of these EFI vans sold without an air injection system? If so, and if you have a belt number HANDY, I could use that, too.
I'll fire up the engine with the new, shorter belt, omitting the air pump. If I again get a noise when I rev it up, I'm going to put in a new water pump (not a bad idea anyway), and see what that does . . .
All I have to work with at the moment is a Chiltons manual, which is pretty poor.