1987 Other Chevrolet Models Chevy Mallard MOTRHM knocking

  • 1 POST
  • 1987 CHEVROLET

Noises problem
1987 Other Chevrolet Models V8 Front Wheel Drive Automatic 59000 miles

I started up my motorhome for the once a month start up, and to transport it to a new location, and it started making a very loud ping or knock. I tied to find the problem and found it was dry of oil, I went to the auto part shop and the man suggested 5w30. The oil cap said 10w30, but I did not feel like it was too big of a deal so I put it in. I ran the engine and it seemed to get better. I drove it about 30 miles and it began to make the noise again, it increased with acceleration, and seemed to not have proper power. It did not ever overheat, and did not reach normal operating temp. The noise stars upon start, and gets louder as it begins to warm.

Do you
have the same problem?
Friday, January 23rd, 2009 AT 4:11 PM

1 Reply

  • 49,691 POSTS

Running an engine dry on oil is not good. You probably burnt up a rod bearing or maybe more. The best thing to do is pull the oil pan and have a gpro that knows what they are doing look at the rods. If the crank is ok and the bearing did not spin you can get away with replacing the bearing but otherwise you'll need at least a crakshaft kit, probably more.

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Friday, November 13th, 2009 AT 4:01 PM

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