1992 chevy 350 problems

[gregrae]

I have a 350 chev motor in my speed boat and I have replaced the ring gear starter motor shimed.
Timing is correct.
The starter will kick back even when there is no spark.
How do I keep the starter ingaged to continue to turn the motor over and over with spark removed from the eginition system.
The starter will engage and turn the engin 1/2 turn to a full turn and disingage.
This is becoming verying frustrating.
Help

[octaneman]

Hi gregrae

2 Questions.

1)How do you start the engine with a key or a push switch ?

2) How long a duration do you want the starter to spin are you performing diagnostics or do you want the starter to spin continuously?

[gregrae]

I use a Key start.
I would like the starter to rotate the engin at least 5 times without dropping out.

[octaneman]

Check the battery make sure its fully charged before you attempt a restart. Do a load test on to verify its condition, if it doesn't pass the load test replace the battery.


After the battery is verified hook up an ammeter to the starter cable see how many amperes the starter draws. If it draws too much replace the starter.

Re-check the shims to the starter it could be that its seating to low and the bendix is jamming on the flywheel. Does the starter make a metallic grinding sound when it spins ?


One other point to see is if your engine is hydro locking, too much fuel or a leaky head gasket will jam the pistons before it reaches TDC. Spin the engine by hand with spark plugs removed does it turn normally ? Turn the key over only this time without the spark plugs installed does the starter spin the engine ?

[gregrae]

What current would you expect from the starter motor.
Thank for your assistance on this matter,
I will inform you of my findings.

[octaneman]

For a chevy 350 engine the average is 350-400 amps check your spec sheet for your model.