Problem with motor

Tiny
RYGUY1987
  • 1994 MAZDA MX3
  • FWD
  • MANUAL
  • 120,000 MILES

Im looking to buy this mazda mx3 coupe off of someone but he said theres knocking. He swapped engines with a JDM KLZE. He got the upper head rebuilt last summer and now it has begun to knock he says. He said he has taken it to get looked at again and it seems the past mechanic forgot to tighten a belt and the upper head has warped, says theres rough idle and knocks pretty good. He put 2000$ into the engine replacing all lifters and retainers and seals and its still knocking. I dont know 100% sure whats wrong? Wondering if you knew whats causing the knocking and how much it would cost cdn funds? Thanks

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Friday, March 18th, 2011 AT 5:18 PM

2 Replies

Tiny
RYGUY1987
  • MEMBER

Could it be because it needs a "knock" sensor?

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Friday, March 18th, 2011 AT 5:28 PM
Tiny
RASMATAZ
  • MEMBER

If its the knock sensor-it'll be knocking/detonating during acceleration due to ignition timing is not being retarted, engine overheating and wrong type of fuel being used-

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Friday, March 18th, 2011 AT 5:52 PM

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