I got my engine al in my gmc jimmy all ready to go.. its a sbc 327 and i got everthing hooked up. WEhne i turn the key it jsut turns the motor for a split second tehn seems to get caught or something and i have to manually turn the engine to get the starter to disengage. Is it jsut that i got the wrong gear on hte starter? If so, is it an easy thing to change? What else coudl cause the starter to do this?
PS- I m jump starting it cause my normal battery fo rht ecar is dead, so it ant like its not gettign enough power.
Well the bendix could be bad but my guess is that the starter needs a shim so it will have proper clearance between the starter bendix gear and flexplate gear. If you lost your shim go to the parts store. Most likely they can fix you up.
howdy old car guy!i'm not sure from your description whether thestarter is still receiving sufficient amperage to turn the engine over.are you using jumper cables?,if so you need to hook up the battery direct[no cables ]as there is a lot of loss when jumping through cables,even really heavy duty ones.when you turn the engine over if you have a ammeter or volt gauge you can watch it to see if power falls off.if you dont have agauge you can turn on your interior overheadf light and see if it dims a great deal.as far as starter gears go i know that my starter will work on 153 or 168 tooth flywheels
It sounds like you may have a power problem BUT, if you find out that it was a shim problem, be very careful. If it is out that much you are actually trying to flex the shaft on the starter or the starter ring itself. The results are not good, I can vouch for that. Either the starter ring will break out from one of the holes, or the nose piece will break off of the starter and go bouncing across the floor! If it was a shim problem and once it's shimed properly you have a lot of starter noise, check to be sure the starter ring isn't broken. Nothing worse that having to pull the engine again to change the starter ring because of a simple mistake, been there-done that! Good Luck, HotRod