Is there anyway I could use a piece of metal screen and put it behind the vacuum pump to prevent the bearings from getting into the timing cavity if it let loose? There is no way I could spend $300 right now to buy an updated vacuum pump. I know what can happen if the bearings came out but how often has it actually happened?

I put an ad in the parts discussion looking for a used updated pump though I bet no one will have one they'd spare. I offered to even send them my old one, but we'll see what happens.

Thanks
David

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2000 Honda Accord V6 137k miles

1972 300SEL 4.5 98k miles

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