360 ~ (( Need Your Help!! )) 360 6-Speed Manual gears won't engage when car is hot

Also see post #21 above. It looks as if his problems were solved by replacing some parts inside box. Are 360 and 430 gearbox the same?

 

If you haven't already started looking for a different Indy shop then id start looking. Tell them everything that's going on and that now your focused on a gearbox issue and get pricing. Their should be several Indys near you on the east coast of florida as I have 2 Indy within 3 miles of my house. Anyway if you find an Indy, and if needed I'd be happy to talk with them to help. Back to some troubleshooting, there's nothing in the shifter housing that's gonna change shifting once at operating temperature. And I doubt it's cables. I think you said clutch, pressure plate, throw out bearing was changed so as long as the master cyl is good, that should rule out the engagement part of it. What's left is the actuator and gearbox. As far as the actuator goes, There's only one rod that goes thru it and I doubt that would bind up that much but you never no. If that was removed you would be able to see evidence of binding on that rod. It may be possible to remove that actuator after the car gets hot and work the shifter. If it works ok at that point then what you have done was troubleshooted the obvious and then you know for certain it's the gearbox. I mean think about it. I think we just covered everything that makes the car shift.... No 360 and 430 are different gearboxes

 

Your story exactly like mine except mine is ongoing. I'm glad you got it repaired.

Why only replace 3/4 fork? I would be tempted to replace them all whether they needed or not at this point . I'm not a mechanic obviously. My gearbox has been out already and taken apart 5 years ago. It didn't restore it to original operating condition. I have a thread in this forum and in Tech Q&A documenting everything that has been done.

How did your mechanic diagnose problem? Prior experience? My car has been a nightmare for 8-9 years now.

I'll run this by my mechanic this week. Thanks for posting.

 

That makes perfect sense. We had a brief phone conversation 2 weeks ago after part arrived. IIRC he said rod on side of transmission was working fine. I assume that is actuator rod.

I agree with you. He is probably reticent to go back in gearbox since he removed and inspected it 5 years ago.

I guess the big question is whether any parts like shift forks can be replaced as opposed to a used 10k transmission. Thanks for your help, as always..

 

For starters shift cables take about an hour or 2 to install. I'd be pissed by now....At this point the best thing I guess would be the parts places like Exotic Auto Recycle, Eurospares and others. There's gotta be someone over your way that can install a gearbox

 

Yeah I'm pissed for sure, calmer than last night at least. Like I said earlier, the big question is whether to go back in existing unit, maybe replace shift fork rods (as in post #21) or get a used transmission.

I'm going to meet w him Tues morning. I'll keep you posted. I sent you a PM.

 

Mechanics (from official Ferrari Service, Finland) was able to identify 3/4 as a problem. He han earlier repair experience for same problem for another F1 gearbox. I got this information from invoice, maybe would be better to change otteeseen as well….at least it works now.

I can feel your pain, not fun to drive when gears not working well. Btw, my gearbox was also redone 3 years ago….

 

So I fixed one of the two issues. I'm still certain that the shifting actuator module (that bolts to the side of the transmission) is gummed up and will remove, clean, lubricate and reinstall next weekend. However, I double checked my shifter bushing and, sure enough, it was cracked. Now it only takes a bit more effort to go through the gears when the transmissions is very warm, but nothing like it was before. No shifter getting stuck, difficult to move between gears, etc.
What probably happened is that the gummed up actuator assembly placed excessive stress on the shifter bushing and it cracked, exacerbating the problem.

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Will keep you posted.