Technical Tips > Engines - Carbies - Exhausts - Dissys

info needed.

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nifty:
after starting the 74 on a cold mornig it backfired...now the starter motor is making a hell of a racket.....its a high torque unit and to look at it doesnt look very old....what are the oddson me stripping some teeth off? also is the good chanceive done the ring gear also? car still starts but the starter is very noisy....
reading a 74 workshop manual it states that if i remove the engine i DONT take the gearbox out attatched....why not? is this just for an auto or a manual box as well?

Cameron 77C3:
Manual or Auto Nifty?  If Auto, don't know about manuals, you should be able to drop the inspection cover and check the ring gear from underneath.  If you have to change it I reckon it's easier to drop the box.  Obviously dropping the starter motor to check it is relative easy. I'd be surprised if you damaged the ring gear on the flywheel/ flex-plate.  Ive never broke or damaged one but have plenty of starters on Holden's and Fords.  Could just be bearings on Starter Motor

Not gospel here only my experiences.

Cam

Chromie:
Hi Nifty;43
I assume that you mean that you are using a reduction/gear drive starter motor and not an original one ;39

I only fit original starter motors to Corvettes
Why you ask? Because they last just about forever and work as the manufacture intended.
If a customer came to me and asked me to fit an aftermarket starter motor I would refuse as I know it would have a high failure rate or noise issues.;30
 
If  your starter motor is making a noise when it is in use it is because it is not in correct mesh with the ring gear.
I also assume that you are using the front support brace on the starter motor as well.

hope this helps:x

SC:
you said it back fired
if the timing is out they will break the nose off the starter
this will also cause a noise from then on
Chromie is correct only fit original starters and the correct / original mounting bolts as they are very important
drop the starter and look

nifty:
thanks all...its an auto behind a 400ci  motor...it has a reduction drive as chromie stated...it was quiet beofe the backfire....now makes a horrible squelling noise...like something not connecting correctly.but still starts easy enough.....ive only had the car for 2 mths and finding a few things (mostly minor) wrong with it...but thats half the fun aint it? so far ive driven it every day, with 2 long cruises to shows (and picked up a second place).we averaged 12.5 lts per 100 kms on highway,and 25 lts/100 in town.motor is worked but dont know specs... was built by super chev....gets  up  and boogies  is all i can say.

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