M42club.com - Home of the BMW E30/E36 318i/iS
DISCUSSION => Engine + Driveline => Topic started by: sopicki on February 15, 2021, 08:30:56 AM
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Hi all,
My 1991 318i convertible's lifters are getting noisy. It's got about 235,000 miles, the engine runs smoothly, STILL doesn't burn oil, has good compressions....otherwise still a pretty nice engine. I've had the car about 12 years and the lifters have always been noisy at start-up. They would tap for a few seconds and then quiet down. Over the last couple of years the tapping has gotten longer and longer now taking up to 4 or 5 minutes to pump up. Despite my wife encouraging me to replace the engine I still feel that it has some life left and I could probably get another 50,000 miles out of her (which at 3500 miles per year would be another 14 years....well into my retirement) if I just fix the lifters.
What's your opinion?
If doing the lifters, what other parts should I replace while I'm in there? ....such as timing chain and tensioner?
What special tools should I be looking for?
Thanks for your replies!
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Anybody?
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If the noise is definitely them, then a replacement is the correct options, but a change of oil brand or weight, can possibly quiet them. Also pay attention to any leaks, as the change can introduce them or make it worse. I have about the same miles (233K)on mine. Engine has been rebuilt but still original lifter and while I can hear them, it is not obnoxious and with engine close, more muffled. If they are not too loud then keep enjoying it until it is time for a full refresh.
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If you still have the problem try adding Liqui Moly hydraulic lifter additive.