- Joined
- Aug 26, 2008
- Messages
- 1,094
- Reaction score
- 13
- Points
- 0
- Vehicle Year
- 1994, 2001
- Make / Model
- 1994 Ford Bronc
- Engine Size
- 5.8v8
- Transmission
- Automatic
- My credo
- Failing is easy. Everyone can do it.
Hiya Campers.
Still having headaches with our 1995 Explorer Sport with the Standard M50D-R1/
Ran it for a few weeks without any really horrific problems with the shifting/clutch issues we did have after changing the master/line and bleeding the snot out of it.
And then it started back having issues in spades! Same ol' problem. No reverse unless you shut the engine off and shift it...then start the engine to back up.
We pulled the master for the 2nd time and bleed it out. Tons of air bubbles!! (okay, several dozen....) And I know we completely bleed the air out the first time when we replaced it, as the clutch was fully disengaging for a couple of weeks. Somehow additional air managed to get into the 'sealed' system. That and when the clutch starts to engage, it's when the pedal is just off the floor. I know that's an issue, because the truck has the factory floor mats and carpeting installed--There's a cut-out from the wear of the clutch pedal in the carpet from how hard the last owner (and myself) have had to stand on the pedal to get it fully released.
I did some research and it seems the reverse gear is supposed to be done with a synchro ring. If I'm wrong? feel free to correct me. But that's what a lot of the online sources are stating. I believe sense reverse is gear grinding when the air pockets start sneaking into things--that synchro ring likely is gone/worn out. Judging by how much of a PITA first and second gears are? (mainly first....) I'd say that synchro ring is also likely worn badly.
The transmission will be coming out in about a months time. That's so I can get the $$ for a new flywheel (which I think during the times the clutch has been replaced- Was likely machined to far and that's causing the clutch pedal to be extra quirky. That would pull the clutch assembly forward, and if bad enough, could cause the slave cylinder to not extend as far as needed to fully release--unless your foot is through the floorboards.)
So new flywheel, pressure plate, pilot bearing, clutch, slave..etc.... RockAuto has some decent pricing on those parts, should be fairly simple to obtain.
The transmission itself is worn.. I did find what I think year-wise is a 2001++ Explorer 4 door with the 4wd and the 4.0 overhead cam engine. Interesting find at the pick and pull yard. But the interchange catalog stated "no go" for swapping. The transfer case was already removed. Cost of a trans is about $120 with core...
Question: Has anyone removed a 4.0 M5OD-R1 from the OHV engine..and swapped it out for a newer one that used the overhead cam 4.0 engine of the early 2000's? And if so- Any issues or problems noted?
I'm on the fence as how much to do with this. Clutch assembly and associated parts I'll obtain when the $ becomes available. It sucks that the system managed to ingest additional air into the sealed system. I'm still clueless as where air could be getting introduced, as we have zero leaks at the bell housing/slave/master/lines. Dry as a popcorn fart!
When I found that newer Explorer with a 4.0 Over head cam engine with a manual 4 wheel drive? I was smiling a lot!! Until the interchange guide stated up to 1997 would work. Not sure if I should spend the $$ and pull that one out of the yard or not.
Ideas welcome!
S-
Still having headaches with our 1995 Explorer Sport with the Standard M50D-R1/
Ran it for a few weeks without any really horrific problems with the shifting/clutch issues we did have after changing the master/line and bleeding the snot out of it.
And then it started back having issues in spades! Same ol' problem. No reverse unless you shut the engine off and shift it...then start the engine to back up.
We pulled the master for the 2nd time and bleed it out. Tons of air bubbles!! (okay, several dozen....) And I know we completely bleed the air out the first time when we replaced it, as the clutch was fully disengaging for a couple of weeks. Somehow additional air managed to get into the 'sealed' system. That and when the clutch starts to engage, it's when the pedal is just off the floor. I know that's an issue, because the truck has the factory floor mats and carpeting installed--There's a cut-out from the wear of the clutch pedal in the carpet from how hard the last owner (and myself) have had to stand on the pedal to get it fully released.
I did some research and it seems the reverse gear is supposed to be done with a synchro ring. If I'm wrong? feel free to correct me. But that's what a lot of the online sources are stating. I believe sense reverse is gear grinding when the air pockets start sneaking into things--that synchro ring likely is gone/worn out. Judging by how much of a PITA first and second gears are? (mainly first....) I'd say that synchro ring is also likely worn badly.
The transmission will be coming out in about a months time. That's so I can get the $$ for a new flywheel (which I think during the times the clutch has been replaced- Was likely machined to far and that's causing the clutch pedal to be extra quirky. That would pull the clutch assembly forward, and if bad enough, could cause the slave cylinder to not extend as far as needed to fully release--unless your foot is through the floorboards.)
So new flywheel, pressure plate, pilot bearing, clutch, slave..etc.... RockAuto has some decent pricing on those parts, should be fairly simple to obtain.
The transmission itself is worn.. I did find what I think year-wise is a 2001++ Explorer 4 door with the 4wd and the 4.0 overhead cam engine. Interesting find at the pick and pull yard. But the interchange catalog stated "no go" for swapping. The transfer case was already removed. Cost of a trans is about $120 with core...
Question: Has anyone removed a 4.0 M5OD-R1 from the OHV engine..and swapped it out for a newer one that used the overhead cam 4.0 engine of the early 2000's? And if so- Any issues or problems noted?
I'm on the fence as how much to do with this. Clutch assembly and associated parts I'll obtain when the $ becomes available. It sucks that the system managed to ingest additional air into the sealed system. I'm still clueless as where air could be getting introduced, as we have zero leaks at the bell housing/slave/master/lines. Dry as a popcorn fart!
When I found that newer Explorer with a 4.0 Over head cam engine with a manual 4 wheel drive? I was smiling a lot!! Until the interchange guide stated up to 1997 would work. Not sure if I should spend the $$ and pull that one out of the yard or not.
Ideas welcome!
S-