engine noise under acceleration
#1
engine noise under acceleration
Gentlemen,
I am having one heck of a problem. I have a rebuilt 302 in my 54 F-100. It has about 5000 miles on it. It is stock other than the edelbrock intake/carb, and the Davis Unified Ignition HEI distributor. The truck seems to run fine at idle. Revving the engine in neutral also is not a problem. The problem is when the engine is under load. During acceleration, I can hear a noise coming from the engine compartment....but only under acceleration. It is not a really distinct "ticking" that might accompany a loose valve or low oil, but more of a muffled knock. At cruising, there is no noise. Any ideas???
Thanks in advance for the help...
I am having one heck of a problem. I have a rebuilt 302 in my 54 F-100. It has about 5000 miles on it. It is stock other than the edelbrock intake/carb, and the Davis Unified Ignition HEI distributor. The truck seems to run fine at idle. Revving the engine in neutral also is not a problem. The problem is when the engine is under load. During acceleration, I can hear a noise coming from the engine compartment....but only under acceleration. It is not a really distinct "ticking" that might accompany a loose valve or low oil, but more of a muffled knock. At cruising, there is no noise. Any ideas???
Thanks in advance for the help...
#2
engine noise under acceleration
Thanks in advance for the help...
DannyP
89 F-150 4x4 former EFI I-6 now carbed 351W, Edelbrock heads,cam,intake,carb.
MSD 6A, ZF, Sterling 10.25 with 3.55L's.
#5
engine noise under acceleration
Thanks for the suggestions, gentlemen. It actually turned out to be a faulty exhaust gasket. It must have been leaking between the manifold and head. Your timing suggestions worked well too. After fixing the exhaust leak, I retimed the engine and it runs much smoother now. Again, thanks for all your help.
--Brandon
--Brandon
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petelynch
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
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12-16-2007 12:09 AM