A855 - 5 Speed
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Is the distributor vacuum canister hooked to ported or manifold vacuum?
340six
King Of Bling
At least he does not have to reply to a 25 page thread on how to adjust the cabel on his 727! Just can't get the correct pressure since he don't have the right linkage, and bought a cabel instead. Or has the right linkages just to slow to adjust one bolt correctlyIs the distributor vacuum canister hooked to ported or manifold vacuum?
Yeah, I think I ended up ignoring that thread...and the member who started it. Time is the most valuable gift and when I get the sense someone doesn't appreciate it, then POOF!
3forty
"Raw Power"
340six
King Of Bling
Why does this thread remind me of talking with a guy who's telling you about his new hot girlfriend. Yea she tossed a hot pot of grits on her old boyfriend while he was sleeping and trashed his car. But she says he deserved it, he really treated her badly and was an ***.
She's very hot and really likes me! She would never think of that to me, we get along great.
Ok maybe ya have to live in the south for that analogy or story? Yes it happens
She's very hot and really likes me! She would never think of that to me, we get along great.
Ok maybe ya have to live in the south for that analogy or story? Yes it happens
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Jarlaxle
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Might it be some proprietary internal parts, or lack of them?
That’s possible because I’ve only seen pictures of one but it looks very close to an 833 with shift rails.
It’s not like those are new technology either.
I could be wrong but that thing is a basic gearbox.
If it was every unit we could say it’s a design flaw or manufacturing error but it’s not.
I’d love to get one apart, on the bench to measure it out.
It would be better if I had the drawings for it but I can skate by without them.
matthon
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I posted pics in this thread with the cover off, unable to find by searching. On my PC I'm sure.
Defective trans popping out of 4th every, single, time.
Design flaw or not, no idea.
You're 1000% correct, basic gearbox, however the #1 issue that permeated every aspect/person involved was incompetence.
Beyond belief how this project ever came to fruition at any level.
That much stupid, the question is not how are these trans popping out of 4th, it is how are the few out there not.
Next time I see my friend, I'll have to ask if his has ever done it. I think the transmission is one thing about the car he's happy about.
I’m sure it was your pictures I saw. Didn’t you post them on here?
The dogs are what keep the slider engaged in whatever gear it’s in.
Was that the only issue these had, or was there others?
matthon
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Yes, posted in this thread somewhere.
The 4th gear issue was the main one, and it had a weird noise when it was in 4th.
It would go into 4th, but most of the time not all the way, hence the popping out.
I posted videos, could turn the gearshift levers with a wrench and when it went fully into 4th it moved twice, when it didn't fully engage it went once.
A-body and b-body trans.
The 4th gear issue was the main one, and it had a weird noise when it was in 4th.
It would go into 4th, but most of the time not all the way, hence the popping out.
I posted videos, could turn the gearshift levers with a wrench and when it went fully into 4th it moved twice, when it didn't fully engage it went once.
A-body and b-body trans.
Did you post the video here? I don’t remember seeing that.
I’d love to if you can find it.
matthon
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Reminds me of when the told me to, hold it in 4th as you drive around for a week or two and let us know if it gets better.
3 videos in a row:
3 videos in a row:
SixPaksRule
Well-Known Member
The problems with the 5sp are manufacturing problems not design problems.
There never was a master gear set used to check the parts manufactured. Out of tolerance parts make noise and don't work well with other spinning parts.
Properly built 833's do not make noise, shift like butter and stay in gear. So should an 855
There never was a master gear set used to check the parts manufactured. Out of tolerance parts make noise and don't work well with other spinning parts.
Properly built 833's do not make noise, shift like butter and stay in gear. So should an 855
- Metrology in manufacturing ensures dimensional uniformity and quality control across global production.
- Calibration and traceability are mandatory practices to validate measurements and share part history.
- Non-contact (optical) and contact (CMM) methods complement each other; multisensor systems handle complex parts.
- Environmental effects and operator changes are mitigated by temperature/vibration compensation and automation.
I understand that. I have to watch Matthon’s videos and look at the pictures again.
matthon
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matthon
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matthon
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Sound of trans from under car
And that was even in neutral! I remember when you first told us about them tellin you to hold it in 4th when it would pop out. I thought that was ridiculous. It's funny now. I know it wasn't then.
weedburner
Well-Known Member
I think they should have put 2 rails in there for the forks to slide on, which would in-turn keep the forks from rotating on the shaft. When I imagine the rotation of the gears, seems to me the forward fork would want to rotate down on its shaft, which would in-turn push the lever on the rooster comb up in the direction of dis-engagement. Maybe the upper part of the fork is bouncing hard enough into the slider that it overcomes the detent?
The arc of travel for the slotted lever on the rooster comb as it moves the fork back and forth, something about how that and the knob on the fork work together doesn't seem right to me either. Two shafts for the forks to slide on would also eliminate that possible issue.
What seems to be the purpose of the bolt-on fork washers?
Grant
The arc of travel for the slotted lever on the rooster comb as it moves the fork back and forth, something about how that and the knob on the fork work together doesn't seem right to me either. Two shafts for the forks to slide on would also eliminate that possible issue.
What seems to be the purpose of the bolt-on fork washers?
Grant
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I was looking at that, but going into gear isn’t the issue as I understand it.
It’s popping out of gear.
That makes me think the slider isn’t all the way over the dogs, or the wire spring for the dogs isn’t stiff enough or something like that.
I was also trying to get a tooth count on the syncros but it’s hard to do not from a picture.
Of the differences I can see between that gear box and the 833 is it looks like there are more than 36 teeth.
If that’s the case it becomes more difficult to get the slider over the synchro because the tooth count is so fine.
If that’s the case the lead into the teeth on the synchro naught be wrong or something.
It’s hard to nail down much without one apart to measure everything.
It sucks because that transmission filled a market need.
weedburner
Well-Known Member
I'm thinking maybe the upper leg of the fork biting into the rotation of the slider might be causing the fork to bounce up/down strong enough to cause it to vibrate out of gear? I think they really needed two rails to keep the forks aligned to the gears like a G101.
Grant
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You sure it’s the G101? It doesn’t have shift rails unless I’m looking at the wrong drawing.
Got it. I found the correct drawing.
That certainly would be better. You’d think the cost would be minimal but sometimes corners are cut to make a price point and it bites them in the ***.
matthon
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Going fully into 4th was the issue.
It would rarely go fully into 4th.
If and when it went fully into 4th it would not pop out, once again, a rarity.
First thing I do in this video is move it one click clockwise from neutral to 3rd.
Then one click counter clockwise back to neutral.
Everything after that is moving it counter clockwise to 4th.
Car is up, I'm spinning the driveshaft while I try to get it into 4th.
Sometimes it clicks once, sometimes twice.
When it clicks once, that's as far as it will go.
When it clicks twice, it goes farther than when it clicks once.
In either case, I don't believe it was fully engaged in 4th.
Driving it, I could 'feel' it not go into 4th, and that feeling was always correct, it would pop out.
Driving it, sometimes I could 'feel' it fully engage into 4th, my feeling was not correct the majority of the time.
I could probably count on my hand the # of times it stayed in 4th. That's 2 or 3 different versions of the same transmission.
I stressed this throughout, yeah, it pops out of 4th, but it's not fully engaging 4th, it's not the shifter or anything external.
It's internal, it did this in and out of the car.
Same with the rotating noise, in and out of the car.
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