|08-15-2011 08:09 PM|
|83 sierra classic||Got it running tonight!!!! Got the starter from the van turns out its a 75 with a muncie and a 350. BUT I had to put about a quarter of an inch of shims into the starter and it was bottomed out on the bellhousing of the tranni. The truck sounds great and no funny vibrations or anything. But obviously ther must be a better fit starter for my setup, I just don't know what it is or how to find out without buying starter after starter.|
|08-14-2011 08:07 PM|
|83 sierra classic||Also guys I was wrong bout the internal and external balance thing. I was thinking the flywheel mount on the end of the crankshaft was the wieght for balancing. My crankshaft has a funny shaped weight where the flywheel bolts up. The other truck has a one piece seal and just a round mount wih bolt holes. Again I'm obviously still learning.|
|08-14-2011 07:26 PM|
|83 sierra classic||I think I'v got it figured out guys. I found out today that there are about 8 different starters for chevys from year 75 to 87 and like bryan said they are different for manuals and automatics. I am going to hunt down the starter that goes with the flywheel I have because it came out of a chevy van that has the same muncie transmission and same size engine as my truck. I thought chevy starters were pretty much all the same but according to my LMC catalog there is quite a range. Finnally got a hold of my chevy buddy and he filled me in.|
|08-13-2011 10:28 PM|
The starter I have has no nose cone.
just a starter pinion gear sicking out.
It is also a dual flywheel starter-----2 sets of inline mounting holes.
A set for the 168 tooth and a set for the 153 tooth.
The drawback for many on this particular starter is that there is no provision for 12 feed to the coil on the older points cars-----not an issue if you are running a 74 or later ignition system.
I'll have to look it up to see what starter I actually have
I seem to recall a Powermaster 9000 or 9600-----not sure---been a long time since I bought it
|08-13-2011 10:27 PM|
No harm in trying that is for sure and looks like that could be the answer looking at these.
|08-13-2011 10:25 PM|
|83 sierra classic||thanks again I am off to bed also.|
|08-13-2011 10:24 PM|
|83 sierra classic||the new starter I purchased today would fully engage but still wouldn't turn engine over fast enough and would hang up. So i am close.|
|08-13-2011 10:21 PM|
|83 sierra classic||I guess that makes sense. I'm just surprised because the other truck had a 168 tooth flywheel and it worked fine and the starter mounts appear to be the same. Any idea if the competition starters bryan was talking about have more adjustment to them. Because if the nose cone was smaller on a different starter I would be able to lower it some more. I'm really close I don't think I would have to go much lower. Also wouldn't a 153 flywheel require a smaller diameter clutch. Because the 168 tooth clutch size is what my clutch size would be if it was a manual from the factory.|
|08-13-2011 10:06 PM|
This is the original starter you are talking about here and you can not shim it out far enough to correct the problem, then my guess is that you will need 153 tooth flywheel.
Sounds to me it is not hitting home and just hanging and jammed, how much of the starter pinion is actually engage .. 1/4 1/2
it was reaching the ring gear but was and still is chattering and barely turning the engine over
Got to go need to get up a 530, I will check back tomorrow, we have certainly found some things to look into . My money in on the flywheel.
|08-13-2011 10:02 PM|
|83 sierra classic||
|08-13-2011 10:00 PM|
|83 sierra classic||Thank bryan and pepi. I really appreciate the help. Everyone seems to be confirming that everyhing SHOULD work. I'll have to do some more research and make sure I'm getting the right starter.|
|08-13-2011 09:54 PM|
|83 sierra classic||Ok thanks. Yeah the flywheels are different which I mentioned earlier in my postings. I got the correct flywheel from a chevy van same era as my truck with a two peice seal. My crankshaft is externally balanced. The donor truck was newer and internally balanced and the crankshaft hole diameters are different.|
|08-13-2011 09:53 PM|
take a close look at these two, one is for internal and the other is for an external balanced motor, are both motors balanced the same? The fly wheels look like one is thicker then the other, that could effect the way the fly wheel hangs off the back of the crank, and that would effect the ring gear placement to the starter.
You should take the number off the two blocks and see what you have, that number will be passenger side front where the head meets the block. This is sounding more and more like a mismatch of parts..
|08-13-2011 09:49 PM|
When you mention Muncie 4 spd----I think of a car trans.
But in your defense---I have a Muncie in my 79 C-10----not a car trans.
It's that big ol' heavy truck granny trans.
Bearing retainer on the truck trans is larger than on a car trans.
That is the piece that bolts onto the front of the trans and looks kind of like a teepee---that the input shaft goes thru and the throwout bearing slides on.
As for flywheels-----not sure but I thought the one piece seal motors and the 2 piece seal motors used different flywheels .
They certainly do on the big block motors.
Starters are different----I have 2 73 Malibus----one AT and one a 3 spd manual----different starters
I would double check everything. When I went from an AT to a manual in my 79, waaaay back in 86, I don't recall running into any issues other than the trans crossmember (different on AT vs Manual) and installing a center bearing crossmember for my driveshaft. That was kind of a pain as that crossmember also supports the back of the cab. AND---my AT starter would not work.
Another option would be an aftermarket hi torque mini starter.
I have one in my 59 (454 and a 5 spd) and tht thing spins the motor just great----heat does not affect it, and it is easy to disconnect wiring and remove. The same cannot be said for a stock GM starter.
|08-13-2011 09:43 PM|
|83 sierra classic||
NO it was reaching the ring gear but was and still is chattering and barely turning the engine over. Not even turning enough to start. and then when I stop trying to start the truck and go underneath to check its stuck in the flywheel and dosen't retract.
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