leaking R154
04-03-12, 07:48 PM
#18
Driver School Candidate
Join Date: Jul 2009
Location: MI
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
I can clean it up and try it next week
04-04-12, 01:30 PM
#22
maybe a larger breather needs to be installed since you are running much more horsepower than was ever intended on this trans. I would look into drilling and tapping somewhere for a large AN fitting and put a breather filter on it. If pressure builds up, oil will leak eventually no matter how much RTV is involved.
04-04-12, 05:30 PM
#24
Is it definitely a pressure problem? What would the pressure originate from? windage? I'm just throwing an idea out there, could it possibly be deflection of the output shaft?
I had an oil leak out of the output shaft seal last year and replaced the seal with a W58 seal. It works for now. I never pushed crazy horsepower numbers so why mine failed so prematurely is a puzzle to me.
Where exactly would be the best place to drill a breather?
I had an oil leak out of the output shaft seal last year and replaced the seal with a W58 seal. It works for now. I never pushed crazy horsepower numbers so why mine failed so prematurely is a puzzle to me.
Where exactly would be the best place to drill a breather?
04-09-12, 05:29 AM
#28
Driver School Candidate
Join Date: Jul 2009
Location: MI
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
well i tryed somthing..... im sure you will laugh just as i did but i was willing to try anything.
In one of my many nights or searching why this happens to some and not others it seems, i read one guys fix and tryed it.
my shifter extention is 5" long and with a few things combined "higher hp, more pressure, maybe pooling in the extention" i acually took 2 sponges and lined the shifter extention with them tight against the shift rod. Funny i know and i never thought it wold work but after a few days of 20+psi + hole shots its around 97% better, still weaps but is not like a waterfall!! i can live with it. Half tank of gas beating the hell out of it and the next day there was a quarter size drop on the ground vs the hole underside of my car.
the sponge will just saturate and let the fluid drain back down in vs blowing out the shifter, even if it does fall down in the trans......its a sponge, it wont hurt anything.
In one of my many nights or searching why this happens to some and not others it seems, i read one guys fix and tryed it.
my shifter extention is 5" long and with a few things combined "higher hp, more pressure, maybe pooling in the extention" i acually took 2 sponges and lined the shifter extention with them tight against the shift rod. Funny i know and i never thought it wold work but after a few days of 20+psi + hole shots its around 97% better, still weaps but is not like a waterfall!! i can live with it. Half tank of gas beating the hell out of it and the next day there was a quarter size drop on the ground vs the hole underside of my car.
the sponge will just saturate and let the fluid drain back down in vs blowing out the shifter, even if it does fall down in the trans......its a sponge, it wont hurt anything.
04-09-12, 06:46 AM
#29
Here's is something to consider:
My R154 is F@#$ed. I mean really screwed.
I can measure Input/output shaft deflection around 1/4". Yes it's that bad. It whines, and crunches, and...
Is it possible, that even in a perceived "Good R154" has enough output shaft play to distort the output seal?
Higher HP deflects the shaft more = more seal distortion.
The R154 has a "Rock Crusher" nickname, but do you think we are just leaving the shaft play alone, because "It's a Toyota R154" and we just assume that it will hold?
I mean, that's what I did after the research.
My R154 is F@#$ed. I mean really screwed.
I can measure Input/output shaft deflection around 1/4". Yes it's that bad. It whines, and crunches, and...
Is it possible, that even in a perceived "Good R154" has enough output shaft play to distort the output seal?
Higher HP deflects the shaft more = more seal distortion.
The R154 has a "Rock Crusher" nickname, but do you think we are just leaving the shaft play alone, because "It's a Toyota R154" and we just assume that it will hold?
I mean, that's what I did after the research.
04-09-12, 07:36 AM
#30
Lexus Test Driver
iTrader: (44)
Join Date: Jan 2007
Location: Maryland /Germantown
Posts: 5,139
Likes: 0
Received 7 Likes
on
7 Posts
^^^^ Are you serious?
But per toyota all the manual trans shaft should have some kind of play, but i am not sure if it's 1/4".
FML!! I was selling my car to this local guy, and he couldn't afford the car with the V160 .So he asked me to install the R154 in there and lower the price So" i said deal"
Last week he backed out of the deal, and i already sold my V160
because i can't find any decent deal on 6 speed swap and i have to deal with leaking R154 BS 
But per toyota all the manual trans shaft should have some kind of play, but i am not sure if it's 1/4".
FML!! I was selling my car to this local guy, and he couldn't afford the car with the V160 .So he asked me to install the R154 in there and lower the price So" i said deal"
Last week he backed out of the deal, and i already sold my V160
because i can't find any decent deal on 6 speed swap and i have to deal with leaking R154 BS