************Problem solved. I bought an 87 reman 302 years ago and drove the Bronco, when I started the resto I saw that I had and 87 block, so I bought 50 oz. flywheel and harmonic balancer, as anything past 81 would need that. I never looked at the old stuff I took off. Well I had an 87 block with earlier internals. I just installed a 28oz. flywheel and harmonic balancer and the Bronco runs great.******* See post 26 for possible solution. Working thru an issue. 1987 302. New 50 oz harmonic balancer and fly wheel. Running the FiTech Go Street 400hp, which seems to be running as it should. New spark plugs, wires, and coil. Plugs all looked good, although a little lean. I've it set at about 10 degrees of timing. Motor mounts are brand new and tight.
I have a pretty good engine shake. I can see and feel it at idle. It seems to smooth out a bit at higher rpms. But really kicks in when dropping back down to idle. Could the harmonic balancer have "slipped"? What else could it be? I have only had it running for month or so, but it ran much better when it first started.
This the balancer I have. https://www.tomsbroncoparts.com/product/harmonic-balancer-50oz-late-5.0l-302-3-or-4-bolt-new
Thanks,
Will
I have a pretty good engine shake. I can see and feel it at idle. It seems to smooth out a bit at higher rpms. But really kicks in when dropping back down to idle. Could the harmonic balancer have "slipped"? What else could it be? I have only had it running for month or so, but it ran much better when it first started.
This the balancer I have. https://www.tomsbroncoparts.com/product/harmonic-balancer-50oz-late-5.0l-302-3-or-4-bolt-new
Thanks,
Will
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