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1987 Chevrolet K30 dump truck 350 v8 sm465 transmission no crank no start

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2 months 3 weeks ago - 2 months 3 weeks ago #64503 by Mkotarba3
1987 Chevrolet V30 dump truck 350 v8 carburetor sm465 trans no crank no start rusty crusty truck. This originally had a 454 big block engine which made real bad noises when running at idle. I am helping my neighbor with his project vehicle. Prior to us swapping out the big block engine I had to jump the starter with a remote starter switch at the starter terminals to make it crank while holding the ignition switch on and depressing the clutch pedal. I swapped in a 1985 chevrolet k20 used 350 v8 with carburetor out of a donor truck that had a th400 automatic.  I removed the crank shaft bushing and put in a pilot bearing for the sm465 transmission that is still in the dump truck. I put in a LUK clutch and flywheel during the engine swap.  After the engine swap I still have to use the remote starter switch at the starter to make it crank. I am not getting spark at the end of the plug wires with a acdelco HEI spark tester.

I am having difficulty figuring out why the new engine will not crank at all with the key.  I do have head lights and interior lights and stop lamps. I replaced the column mounted ignition switch to no avail. I disconnected the clutch switch and used a fused jumper at the connector that made no difference in it cranking at all.
 Is there any problem areas I should inspect on a square body truck? 
Last edit: 2 months 3 weeks ago by Mkotarba3. Reason: typo

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2 months 3 weeks ago #64510 by Lupe
did you check fuses and relay to starter and if you are getting 12 v at starter in both cable and wire from igntion to soleniod WHEN CRANKING GOOD LUCK

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2 months 3 weeks ago #64512 by Mkotarba3
Luke, i readjusted the column mounted ignition switch and dimmer switch.I put a 3/32 drill bit in the hole in the dimmer.I now have a crank no start.

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2 months 3 weeks ago #64513 by Mkotarba3
I tested the ignition coil per the service manual which tested bad. Then i tested the hei module at b plus terminal at 12.6 volts. The tach terminal was 8.5 volts koeo which is bad. Replaced hei module. Truck runs fine now.

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2 months 3 weeks ago #64514 by Lupe
wow good job thanks for the up date

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