Every day tips for living with a 599
Discussion
I pretty much thought I had all all the parts paid for. Only labour and few other things like SSautotech to cover.
Gearbox is being stripped so that the parts can be isotropic super finished and unfortunately there is play in the gears. Lots of work to do determine what needs to be done and my heart is in the floor.
PH doesn't let me upload video so here's a screenshot of the two gears
Gearbox is being stripped so that the parts can be isotropic super finished and unfortunately there is play in the gears. Lots of work to do determine what needs to be done and my heart is in the floor.
PH doesn't let me upload video so here's a screenshot of the two gears
F355GTS said:
Very strange, FB says I need to be over 18 to see this post cake eater said:
F355GTS said:
Cake there is a s/h box for sale on Facebook ,not sure if it helps
I'll see if I can find the group
I already have a sI'll see if I can find the group
t box 
I hope she doesn't fall at the first fence and have to be
Shhh.....
cake eater said:
cake eater said:
F355GTS said:
Cake there is a s/h box for sale on Facebook ,not sure if it helps
I'll see if I can find the group
I already have a sI'll see if I can find the group
t box I hope she doesn't fall at the first fence and have to be
Shhh.....
928 GTS said:
That's lots of wear for miles. Must be something wrong in hardening or something. Especially if gear surface is still ok. Meaning gear has been eating itself into soft shaft.
I'm particularly confused as it's 5th and 6th gears. Maybe the larger grippier tyres?Lee's father Mark said the the early cars were known to have a material quality or manufacturing defect for the main shaft. Apparently it was never a recall as the issue wasn't realised until late in the cars life cycle and few people do this mileage. Having said that it's not unknown and also an issue with the 612 if internet is to be believed.
As I'm intending to get the gears ISF, I'll do the replacement shafts etc as well and hopefully this will help. From the photos Lee sent I can see some sharpness / markings on the teeth that the ISF will hopefully polish off. This should help to reduce further wear.
Original intention for the ISF was to help with the shifting. I did this with my race bikes, massively improved the shift as well as giving 3 bhp at the wheel. We'll see if it makes a noticeable difference to the car once everything's back together.
Wishing everyone on PH a happy and healthy New Year. Dry January has already fallen foul of temptation.
Nevermind, Simon at SS Auto Tech https://www.ssautotech.co.uk/ has sent an update on the F1 actuator testing.
.... testing your F599 F1 system.
It is a weak system, and we’ve made an assessment of the following items that need addressing;
One of our tests we carry out here, is a valve leakage test, see attached blue photo. We power up the F1 system between two pressure limits, and pulse each solenoid on a timed pulse, one solenoid at a time. The amount of pulses is recorded on a counter, and that value tells us quickly how strong or weak the system is. The higher the count the stronger the system.
Valve leakage results;
Taking hose length into consideration, EV1 & EV2 should be similar at approx. 80 counts, within 20 counts of each other.
EV3, 4 & EV5 should also be similar to each other, at approx. 100 counts.
If you zoom in to the last photo, you can see wet grey / black grease. That’s hydraulic fluid and molybdenum grease mixed together, finding its way out to the rear of the actuator.
Testing setup
F1 actuator on test
Testing results
Leak
Hoses have pressure tested okay but due to previous failure of one hose, age and use, I have opted to change out all the hoses as per Simon's recommendation.
Of note is how this links to the gearbox wear and damage. MDL have completed the strip down and there is some synco damage as well as the worn gears, particularly reverse. Conclusion is that this is due to previous pump failure and deteriorating performance of the F1 actuator.
Nevermind, Simon at SS Auto Tech https://www.ssautotech.co.uk/ has sent an update on the F1 actuator testing.
.... testing your F599 F1 system.
It is a weak system, and we’ve made an assessment of the following items that need addressing;
One of our tests we carry out here, is a valve leakage test, see attached blue photo. We power up the F1 system between two pressure limits, and pulse each solenoid on a timed pulse, one solenoid at a time. The amount of pulses is recorded on a counter, and that value tells us quickly how strong or weak the system is. The higher the count the stronger the system.
Valve leakage results;
Taking hose length into consideration, EV1 & EV2 should be similar at approx. 80 counts, within 20 counts of each other.
EV3, 4 & EV5 should also be similar to each other, at approx. 100 counts.
If you zoom in to the last photo, you can see wet grey / black grease. That’s hydraulic fluid and molybdenum grease mixed together, finding its way out to the rear of the actuator.
Testing setup
F1 actuator on test
Testing results
Leak
Hoses have pressure tested okay but due to previous failure of one hose, age and use, I have opted to change out all the hoses as per Simon's recommendation.
Of note is how this links to the gearbox wear and damage. MDL have completed the strip down and there is some synco damage as well as the worn gears, particularly reverse. Conclusion is that this is due to previous pump failure and deteriorating performance of the F1 actuator.
Sigh. The news never gets any better does it. I feel for you, Cake (and your wallet). Thank you for sharing your pain.
Renewing the hoses makes sense but what about renewing the actuator if the performance is so poor?
Is it possible to rebuild them these days? I know that when I bought my F355 F1 a decade ago, it came with a new actuator as the independent sector hadn't worked out how to reliably rebuild them at the time.
Renewing the hoses makes sense but what about renewing the actuator if the performance is so poor?
Is it possible to rebuild them these days? I know that when I bought my F355 F1 a decade ago, it came with a new actuator as the independent sector hadn't worked out how to reliably rebuild them at the time.
ANOpax said:
Sigh. The news never gets any better does it. I feel for you, Cake (and your wallet). Thank you for sharing your pain.
Renewing the hoses makes sense but what about renewing the actuator if the performance is so poor?
Is it possible to rebuild them these days? I know that when I bought my F355 F1 a decade ago, it came with a new actuator as the independent sector hadn't worked out how to reliably rebuild them at the time.
Hi ANOpax, Renewing the hoses makes sense but what about renewing the actuator if the performance is so poor?
Is it possible to rebuild them these days? I know that when I bought my F355 F1 a decade ago, it came with a new actuator as the independent sector hadn't worked out how to reliably rebuild them at the time.
This one is definitely a deep one for costs. The actuator and selector is going to be fully rebuilt. I'm confident that Simon can rebuild with reliability and performance. He's also used by REPerformance so industry trusted and recommended by highly reputable people.
This is the scope of work:
Actuator rebuild, full overhaul
Valve body rebuild / reseal. Solenoids ok, ultrasonic clean and reseal
Selector housing rebuild inc. new bushes and seals. Potentiometers ok
New hose set. Manufactured in house as per OEM
Once completed, should be better than new.
Along with the revised TCU/ECU map from @360Trev and gearbox rebuild with ISF, I expect this to be the best shifting 599 ever
hiding from the evil eye 
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