HarryK
New member
- Joined
- Jun 14, 2016
- Location
- Asheville, NC
Hi all,
I'm having an issue with a knocking sound under acceleration/any throttle input. Pretty quiet at idle.
The motor is a stock 1994 B230TF from a 940 turbo. I had a saga with shorted melted plug wires (thanks for making them too long IPD) and then different connection types when I replaced plugs and wires ect. Now all is sorted with BPR7ES and a plain set of Duralast wires. Plugs were gapped at .030 in and are now gapped to .032 in, with no change. The motor has been healthy in the past, so I doubt its mechanical knocking especially considering that I've had all these issues with the plugs and wires lol. The plugs are torqued to 18 ft lbs. The wire from the coil to the distributor is the IPD blue wire still, just haven't changed it. The distributor rotor and cap are new too.
I took it to a specialty shop a while back and they told me the timing was off - not sure if they advanced or retarded it. I don't trust what they did because they didn't even notice the plug wire that was melted and causing a misfire... whatever.
What is y'alls take on the knocking sound? Should I change to a regular copper plug or a BPR6ES or just triple check all of the plugs? Does it seem like the timing could be an issue? I'm about to list the car for sale so I don't want it sounding like its about to blow lol.
Thanks
I'm having an issue with a knocking sound under acceleration/any throttle input. Pretty quiet at idle.
The motor is a stock 1994 B230TF from a 940 turbo. I had a saga with shorted melted plug wires (thanks for making them too long IPD) and then different connection types when I replaced plugs and wires ect. Now all is sorted with BPR7ES and a plain set of Duralast wires. Plugs were gapped at .030 in and are now gapped to .032 in, with no change. The motor has been healthy in the past, so I doubt its mechanical knocking especially considering that I've had all these issues with the plugs and wires lol. The plugs are torqued to 18 ft lbs. The wire from the coil to the distributor is the IPD blue wire still, just haven't changed it. The distributor rotor and cap are new too.
I took it to a specialty shop a while back and they told me the timing was off - not sure if they advanced or retarded it. I don't trust what they did because they didn't even notice the plug wire that was melted and causing a misfire... whatever.
What is y'alls take on the knocking sound? Should I change to a regular copper plug or a BPR6ES or just triple check all of the plugs? Does it seem like the timing could be an issue? I'm about to list the car for sale so I don't want it sounding like its about to blow lol.
Thanks