Counter Shaft Bolt Nut!!!

utkuselamoglu · Post by **utkuselamoglu** » Tue Jul 28, 2009 3:56 am

Hi I am having a problem with my b16 tranny(hydrolic).. I have 4.05 pro m factory final drive with pro gear set.. There is no problem with the setup and the parts everything works fine but I am having broken my tranny case second time in a week... When I try to launch at firsth gear the bolt nut of the counter shaft loosen and the shaft moves left and right I think and hits the case and its broken... Then something happens beacuse of the movement of the counter shaft and it not shifts the second gear anymore. Other gears are okey... What could be the possible reason for this issue? What Do I have to do to prevent this..??.I am affraid of having broken my case again if I change the tranny case with the same parts installed again... The shift forks are okey- the shaft is okey - the gears seems okey and the case seems okey... I am using loctatite also to lock the nut on the shaft...

Natural Aspirations · Post by **Natural Aspirations** » Tue Jul 28, 2009 5:16 am

Sounds as if the bearing is binding need to check end play. trans should rotate pretty smoothly when assembled.

utkuselamoglu · Post by **utkuselamoglu** » Tue Jul 28, 2009 11:29 am

Natural Aspirations wrote:Sounds as if the bearing is binding need to check end play. trans should rotate pretty smoothly when assembled.

I said, Everything is just fine rotating very well and all off the bearing were new... I had this issue 2 times...

ge0ne · Post by **ge0ne** » Tue Jul 28, 2009 5:00 pm

Nut should be tightened 11 kgms but i would go at 12... Secure it as best as you can.

utkuselamoglu · Post by **utkuselamoglu** » Tue Jul 28, 2009 5:05 pm

ge0ne wrote:Nut should be tightened 11 kgms but i would go at 12... Secure it as best as you can.

Yes I did it too... I have tightened maybe more than 11 kgms...

b20beast · Post by **b20beast** » Thu Jul 30, 2009 9:22 pm

Check the Shim clearances in the diff to housing. that's the only thing i can think of.

utkuselamoglu · Post by **utkuselamoglu** » Mon Aug 03, 2009 11:04 am

b20beast wrote:Check the Shim clearances in the diff to housing. that's the only thing i can think of.

That is fine...

utkuselamoglu · Post by **utkuselamoglu** » Wed Sep 30, 2009 4:45 am

the same problem occured 3rd time again.. What am I have to try to prevent this issue?

g.t engineering · Post by **g.t engineering** » Thu Oct 01, 2009 1:37 am

post some pics of the damage

xenocron · Post by **xenocron** » Fri Oct 02, 2009 10:41 am

What does MFactory tell you to try?

D.Oxync · Post by **D.Oxync** » Thu Oct 08, 2009 5:24 am

How so?

utkuselamoglu · Post by **utkuselamoglu** » Thu Oct 08, 2009 11:13 am

xenocron wrote:What does MFactory tell you to try?

He has asked some photos from me... but I think I have found out the main problem it is all about the tranny case.. Inside the tranny case there is bearing guide which gets 2 of the counter shaft bearings inside. That surface of that part break down a liddle bit and it makes the ball bearing tighten and the bearing failures... In conclusion the bearing becomes pull to pieces and makes the nut loosen or etc... I am going to buy a new tranny case and again I am going to change all of the bearings inside the tranny.. This time if it fails again

I will try some sequential transmission or dog box gear set of Mfactory with a new tranny.

Tiewoli09 · Post by **Tiewoli09** » Sat Dec 26, 2009 3:59 pm

no the flanges are off the front of an explorer Rear shaft and will bolt to a 7.5 the shaft used is a front shaft with the rear flanges installed on it after the cv chunk was cut out

elevation · Post by **elevation** » Sat Dec 26, 2009 7:43 pm

weld the F'n nut on the shaft after you torque it... I weld the spider shaft in the old b series all the time works great( the one with the sprung roll pin for retaining the shaft rather than solid pin.)