rustystud
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Don't bother with money for freight. It didn't cost much. Just enjoy your new servo.
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303M HydraMatic rebuild
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rustystud
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Tonight's little rant involves the 303M's rear oil pump filter. For you guys running your m135's with the HydraMatic, you need to clean this filter on a regular basis ! It's a small filter and easily clogs up thus depriving your reduction system of oil. Every filter I have removed lately has been clogged up. I know it looks like a drain plug, so your natural inclinations are to leave it alone, don't !
rustystud
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I'm in the process of tearing down transmission number 3 of the 5 Canadian 303M's I brought home early September.
I found the transmission 'Lyle" warned me about that had died during an extraction from the mud. He mentioned the previous owner had tried to "rock" it out and during this procedure the transmission died.
I found out why.
Can anyone see what is wrong here ?
This is the "reverse internal gear" . It is the same part as a civilian transmission and should "NEVER" be rocked ! It was not made for the kinds of load the M135 can put on it. Also, you should always use low range when using reverse gear if you want your 303M transmission to live a long happy life. I know a lot of people get really testy about this, but the truth hurts sometimes.
It was not made strong enough to handle the weight of a M135 truck. Like I said, it is literally the same part used in cars. Like your great granddaddy's Oldsmobile.
I have never seen this kind of damage to this part on any car, only M135 trucks.
Kinda makes you think "HUMMMMM? " maybe this part should have been made bigger for this application ?
That 1" bright spot was the only thing still holding this part together.
I found the transmission 'Lyle" warned me about that had died during an extraction from the mud. He mentioned the previous owner had tried to "rock" it out and during this procedure the transmission died.
I found out why.
Can anyone see what is wrong here ?
This is the "reverse internal gear" . It is the same part as a civilian transmission and should "NEVER" be rocked ! It was not made for the kinds of load the M135 can put on it. Also, you should always use low range when using reverse gear if you want your 303M transmission to live a long happy life. I know a lot of people get really testy about this, but the truth hurts sometimes.
It was not made strong enough to handle the weight of a M135 truck. Like I said, it is literally the same part used in cars. Like your great granddaddy's Oldsmobile.
I have never seen this kind of damage to this part on any car, only M135 trucks.
Kinda makes you think "HUMMMMM? " maybe this part should have been made bigger for this application ?
That 1" bright spot was the only thing still holding this part together.
rustystud
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Well I finally found out what MWO "B" means. MWO "A" means the front clutch has 5 disc's instead of the original 3 the 302M came with. MWO "B" means the reduction piston has four holes drill in it to help with piston release, plus it helps lubricate and cool down the "reduction driven cone" which can get really hot.
I had a 302M which had both "A" and "B" MWOs applied to it. That made it hard to figure out what they did since now it is basically a 303M transmission. I knew the original 302M had 3 clutch plates in at. So that was a given, but I didn't know what the "B" mod was since all my other transmissions were the 303M's. This last transmission though was a 302M that had the "A" mod done but was last rebuilt in 1964 before the "B" came out. So, looking at all the parts I found the reduction piston had no holes in it.
This was the last piece of the puzzle. Later on came the "C" mod which is the front servo modification which I have already implemented in this rebuild.
I'll drill out this piston and put it in the stockpile.
I had a 302M which had both "A" and "B" MWOs applied to it. That made it hard to figure out what they did since now it is basically a 303M transmission. I knew the original 302M had 3 clutch plates in at. So that was a given, but I didn't know what the "B" mod was since all my other transmissions were the 303M's. This last transmission though was a 302M that had the "A" mod done but was last rebuilt in 1964 before the "B" came out. So, looking at all the parts I found the reduction piston had no holes in it.
This was the last piece of the puzzle. Later on came the "C" mod which is the front servo modification which I have already implemented in this rebuild.
I'll drill out this piston and put it in the stockpile.