 strange engine problem, loss of power under load, strange noise |
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| mightyohm |
 Oct 12 2013, 07:51 PM
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#1
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Advanced Member  Group: Benefactors Posts: 2,277 Joined: 16-January 03 From: Seattle, WA Member No.: 162 Region Association: Pacific Northwest   |
Hey all,
I'm having a strange engine problem that I'm hoping someone can help me diagnose. When I give the car heavy throttle, I hear an intermittent noise that seems to be coming from the engine compartment. It's like a muffled banging or exhaust sound. When I hear the noise I feel a loss of power. When the car is warm, the sound is always accompanied by a whif of burning oil. Aside from this problem the car is running fine - idle hasn't changed, no obvious misfiring. It's only under load that I have this problem. It seems to happen the most when the engine is in its peak HP range - upwards of 3000 rpm. This started happening about 6 months ago. I drive the car to work every day, so I have been noticing that it is slowly getting worse over time. Initially, it only happened when the car was cold, and completely went away after the car warmed up. Now it happens all the time, but it's still worst before the car has had a chance to warm up. Any ideas? I'm fearing the worst - cyl to head leak? Cracked head?? |
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| r_towle |
Oct 13 2013, 04:36 PM
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#2
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Custom Member Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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How many miles n the motor?
What break in procedure did you use? |
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Posts in this topic
mightyohm strange engine problem Oct 12 2013, 07:51 PM
kg6dxn Dude, where have you been? I thought you were in A... Oct 12 2013, 07:57 PM 914itis Also sounds like bad timing. Oct 12 2013, 08:08 PM Dave_Darling More in lower gears than higher ones? Check your ... Oct 12 2013, 08:39 PM pcar916 I always suspect points/fuel pump when this happen... Oct 13 2013, 07:25 AM mightyohm It doesn't feel like fuel starvation or a lean... Oct 13 2013, 11:41 AM The Cabinetmaker Fuel filter is available at the bug places, like b... Oct 13 2013, 01:37 PM
JawjaPorsche
Fuel filter is available at the bug places, like ... Oct 13 2013, 02:01 PM mightyohm Napa 3274 looks like the right part - will pick on... Oct 13 2013, 03:33 PM mightyohm r_towle - Not sure of the mileage or breakin, this... Oct 13 2013, 07:48 PM |
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