5th Gear Crunches Who Has Had This Problem?

[WBT56]

WBT56

HI

What sort of experience have you had with this problem is it common for the T5? And wat can be done to stop the problem?

Thanks

Frank

The unit in question, the fifth gear synchro assy, has remained unchanged since the first world class T5's were built. You could put the synchro out of an XF T5 into an XR6T T5. Therefore, if people have not had problems previously, then there are only two possible causes of this problem. One is incorrect fluid, which Ford have been running since AUII. The other, bigger, culprit, is the clutch system. Since the introduction of the non adjustable hydraulic system, the number of shift related baulking and clunking problems has gone through the roof. This is due to the fact that the clutch engage point is way too far off the floor to do a smooth, quick, change. In short, a fluid change will help, but not as much as it does in the AUII and III. Until someone releases a revised mechanism, it may remain a problem. Ben.

[TURBO4LT]

WBT56

HI

What sort of experience have you had with this problem is it common for the T5? And wat can be done to stop the problem?

Thanks

Frank

The unit in question, the fifth gear synchro assy, has remained unchanged since the first world class T5's were built. You could put the synchro out of an XF T5 into an XR6T T5. Therefore, if people have not had problems previously, then there are only two possible causes of this problem. One is incorrect fluid, which Ford have been running since AUII. The other, bigger, culprit, is the clutch system. Since the introduction of the non adjustable hydraulic system, the number of shift related baulking and clunking problems has gone through the roof. This is due to the fact that the clutch engage point is way too far off the floor to do a smooth, quick, change. In short, a fluid change will help, but not as much as it does in the AUII and III. Until someone releases a revised mechanism, it may remain a problem. Ben.

Ben

Thanks for the info, was very helpfull. They did mention a fluid change, I didnt see how this would help but worth a try I guess.

Frank

[WBT56]

They did mention a fluid change, I didnt see how this would help but worth a try I guess.

Frank

I would recommend a change of fluid type, not just a change of the actual fluid. Ben.

[TURBO4LT]

They did mention a fluid change, I didnt see how this would help but worth a try I guess.

Frank

I would recommend a change of fluid type, not just a change of the actual fluid. Ben.

Hi Ben

What sort of fluid would you recommend, I was thinking of putting redline shock proof in it , have you had any experience with this product or can you recommend a good oil?

Frank

[XR6_ED]

hi WBT56 .....The t5 in my modified ED (215RWKW) has no problems at all except the large ratio jump from 2nd to 3rd will make a crunch when changing at 6500rpm.. I have had no dramas changing from 3rd to 5th or 1st,3rd ,5th.... I am running DIII with nulon additive as the recommended 75/90 makes it a to change when cold... that's the reason I went for a manual with the T as I hoped it would cope but 3weeks in I think I have dramas with 5th

[WBT56]

Hi Ben

What sort of fluid would you recommend, I was thinking of putting redline shock proof in it , have you had any experience with this product or can you recommend a good oil?

Frank

I would recommend Castrol Transmax Z. No additives. Late model 3/4 blocker rings can have big issues with other types of oil, as they are designed to run a DIII based fluid.

[WBT56]

hi WBT56 .....The t5 in my modified ED (215RWKW) has no problems at all except the large ratio jump from 2nd to 3rd will make a crunch when changing at 6500rpm..

What other shifts do you make at 6500rpm? Ratio jump should not affect synchro operation. I generally find that a gearchange that is good at moderate rpm and bad at high rpm is due to clutch drag. It will show up in third before first and second at the same rpm because first and second have compound synchros. Ben.

[TURBO4LT]

Hi Ben

What sort of fluid would you recommend, I was thinking of putting redline shock proof in it , have you had any experience with this product or can you recommend a good oil?

Frank

I would recommend Castrol Transmax Z. No additives. Late model 3/4 blocker rings can have big issues with other types of oil, as they are designed to run a DIII based fluid.

Ill give it a go.

Cheers

[Antisocial]

QUOTE (WBT56 @ Jan 9 2004, 11:15 PM)

Have any of you guys had this problem with the T5 in any of your previous cars, right back to XF? 

Anyone?

After I read this I took my wifes EA S, 5 speed for a fang. Almost 15 years old and 160,000ks, shifts smooth as.....I can even go straight from 5th to 3rd with no dramas.

After driving the T, when the EA is at 4,500 rpm it feels and sounds more like 10,000..

[Guest beloyg]

have had a lot with this prblem all I do is replace 5th gear hub which comes with 2 synchros and job done no more problems and the fluid has changed they recomend a synthetic ATF