I just started rebuilding my old/spare tranny that i removed at 198k for a noisy (what i thought at the time) input shaft bearing. upon disassembly, i discovered that the input shaft bearing, while noisy, was not the bearing the failed. instead, the outer bearing on the secondary shaft that the spring clip rides on had failed. (it of course filled the tranny with metal shavings which overloaded the magnet and then damaged the rest of bearings but thats a different story) my question is, how did THAT bearing get killed? it's completely enclosed in the tranny and submerged in oil all the time. additionally it's on the secondary shaft which shouldn't see as high of rpm as the main shaft does. has anybody had a similar thing happen? was it just age related, or could something else be damaged/failing and this is the first symptom? tia

nate

 

i had the mainshaft bearing go on mine. just replaced all the bearings and 3rd gear,for worn syncro. it has been raced and street drive for 20k+ since and no other problems. i would not work too much, just do a good insp of all reused hard parts.

btw what fluid has been used in the tranny?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shakedown94 &raquo;</TD></TR><TR><TD CLASS="quote">i had the mainshaft bearing go on mine. just replaced all the bearings and 3rd gear,for worn syncro. it has been raced and street drive for 20k+ since and no other problems. i would not work too much, just do a good insp of all reused hard parts.

btw what fluid has been used in the tranny?</TD></TR></TABLE>

i thought it was the main shaft bearing at first since that was what everyone said it was when you had the symptoms i had. even had that bearing in hand, ready to put in when i discovered the secondary shaft spring clip bearing was NFG. you should have seen the amount of metal in there... i used honda MTF for the majority of the time. in my n00b days i tried some Mobil1 but quickly changed back after the synchros started having problems and the tranny was difficult to shift. had redline in it for a short time too, but at the time i was lunching reman'd axles on a monthly basis so i stopped using the expensive stuff and went back to honda MTF.

i talked with some honda tech's and they seem to all feel it was an age issue. there are two bearings on that end of the shaft and the other one is fine beyond being full of ground up ball bearings from it's neighbor. the synchros all look fine too. at this point i'll just replace all the bearings and put an EF 5th gear in it so i don't have to downshift to pass on the highway anymore. i'll do a very close inspection of the secondary shaft while i'm in there, just to make sure i don't have some tolerance that is way out of line.

nate

 

It has been my exp. that Redline Fluids tend to eat at the plastic used in the bearing cages.

That could have played a factor, but do you only autox or do you do HPDE or road racing also? Very possible you could have starved the bearing on a CW course, like VIR.

Make sure to inspect the roller bearings under the gears and flush the center of the shafts. Metal or too thick of oil (gear oil!) will clog the oil holes, not let oil down the center of the shafts.

Gear oil in Honda tranny is bad, mkay?



It was noisy after a bearing rebuild, so the shop added another 1.5 quarts of gearoil. The tranny had a total for 3.5 quarts when drained.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone &raquo;</TD></TR><TR><TD CLASS="quote">
Gear oil in Honda tranny is bad, mkay?
</TD></TR></TABLE>

So what are you supposed to use.... beer?

I have never had a problem with redline fluids in the trans, but i prefer to use Motul Gear 300.

 

Gearoil like you'd use in the rear end of old car, 85w100 molasses.........it's so thick it won't flow thru the shafts.........burns up the bearings.

 

75w80 or 75w90 is fine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone &raquo;</TD></TR><TR><TD CLASS="quote">It has been my exp. that Redline Fluids tend to eat at the plastic used in the bearing cages.

That could have played a factor, but do you only autox or do you do HPDE or road racing also? Very possible you could have starved the bearing on a CW course, like VIR.

Make sure to inspect the roller bearings under the gears and flush the center of the shafts. Metal or too thick of oil (gear oil!) will clog the oil holes, not let oil down the center of the shafts.

Gear oil in Honda tranny is bad, mkay?



It was noisy after a bearing rebuild, so the shop added another 1.5 quarts of gearoil. The tranny had a total for 3.5 quarts when drained.</TD></TR></TABLE>

all the bearings are going to be replaced since they are all a little rough. the magnet couldn't hold the shear volume of pulverized metal and let much of it circulate through the tranny. no major road course duty so very unlikely for an oil starve situation. i think it was just age.

if the redline fluid eats the plastic bearing cages then i'd think all the other bearings would have the same problem. at any rate, the bearing that went in my tranny was one of the ones with the steel cage. all of the other ones would probably have been fine if not for the metal slag in the oil that lubbed them.

nate - won't wait so long to pull the tranny once it starts making more noise then "normal"

 

Hey so I am a nublet when it comes to transmissions, will someone point out to me what is wrong with the above transmission? I dont really see anything thats all chewed up or anything...

 

The fluid shiuldnt be murky and green Bearinngs are likely trashed

 

see how clean this tranny was during OBX install..........thats the way it should be. It wasn't cleaned out either.....just the oil drained.........

 

so, Mista... are you recommending OEM Honda MTF or something else?

I have personally had fantastic luck with GM Syncromesh.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rambler &raquo;</TD></TR><TR><TD CLASS="quote">so, are Mista... are you recommending OEM Honda MTF or something else?

I have personally had fantastic luck with GM Syncromesh.
</TD></TR></TABLE>

I wouldnt touch either of those, unless it was the synthetic ($11-12/qt) synchromesh.

My trans

Bonus to who can tell me what is wrong with that picture (and no visible beer cans is not the right answer)

 

hmm, the oil pickup shim was "professionally" ground down to fit?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SJR &raquo;</TD></TR><TR><TD CLASS="quote">hmm, the oil pickup shim was "professionally" ground down to fit?</TD></TR></TABLE>

Well, other than that.... you can see the assembly error in question in the pic (was that a hint? )

 

answer deleted for now

 

You are using Medical Blue diappers in your garage insted of using it in your bed just in case you have a wet dream? Its in the box just in case u missed it.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .RJ &raquo;</TD></TR><TR><TD CLASS="quote">

I wouldnt touch either of those, unless it was the synthetic ($11-12/qt) synchromesh.

My trans

Bonus to who can tell me what is wrong with that picture (and no visible beer cans is not the right answer)

[/img]</TD></TR></TABLE>

 

backup, what was the question?

what, we can't back up?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone &raquo;</TD></TR><TR><TD CLASS="quote">backup, what was the question?
</TD></TR></TABLE>

Whats wrong with that transmission

 

no backing up allowed

I've been using Pennzoil Synchromesh without issues.........

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone &raquo;</TD></TR><TR><TD CLASS="quote">no backing up allowed </TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .RJ &raquo;</TD></TR><TR><TD CLASS="quote">

I wouldnt touch either of those, unless it was the synthetic ($11-12/qt) synchromesh.

</TD></TR></TABLE>

It is, though I don't pay nearly that for it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone &raquo;</TD></TR><TR><TD CLASS="quote">see how clean this tranny was during OBX install..........thats the way it should be. It wasn't cleaned out either.....just the oil drained.........
</TD></TR></TABLE>

Care to elaborate, then, Bone-miester, how that OBX install went?? I know you're the guru, figured you have something interesting to report, and that it might be unbiased and useful.

Oh, FWIW, I only run Honda MTF. It's the only way to go.

Jon

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jon Nelson &raquo;</TD></TR><TR><TD CLASS="quote">
Oh, FWIW, I only run Honda MTF. It's the only way to go.
</TD></TR></TABLE>

Absolutely not for track use.

That stuff isnt special at all. Smooth shifting for street use, but it breaks down and grinds in a hurry under track abuse.

 

I've had good luck at the track with it, showing no mercy.... including not checking or changing it for a couple of seasons....... and my current tranny has 375,000km on it.

where's my list of things to do?



Jon