G
Guest
·I thought I better post this as it is extremely worrying to say the least!!!!
I have just been discussing the current gearbox bearing problem with Paul Curran (GSRed, my transmission expert
) and we have come to a very worrying conclusion! Please read this and take note as it will effect pretty much every Evo owner out there and especially those who get their car serviced by Ralliart approved dealers (instead of doing it themselves).
Just to recap briefly on the gearbox bearing problem
It seems to be a growing problem with the Evo 4-6 that the gearbox bearings wear out prematurely. I know of at least 4 or 5 people who have had this problem fixed at my local Ralliart approved Mitusbishi dealer so nationwide there must be a lot more. It seems that the bearings wear out from anywhere between 15,000 to 25,000 miles but it has been known to happen earlier. I had put this down to a possible manufacturing fault or poor design (still might be) however something else came to light today when Paul and I were discussing it.
I was checking back through my records and I came across the Ralliart service sheet (the tickbox thing). On it they obviously list the various servicing points (4,500 miles, 9,000 miles etc.) and what they check or change. I was looking for when they change the gearbox oil. I couldn't believe when I saw they only change the gearbox oil at 45,000 miles! YES 45,000 miles! On such a high performance car as the Evo this is absolutely ridiculous! (even to my uneducated mind). Paul couldn't believe the interval either and after we exchanged quite a few expletives he went on to explain he changes his own gearbox oil every 12k miles which to me is entirely sensible. For some reason I thought Ralliart recommended every 18,000 miles but obviously this is not the case, I thought mine had been changed by my dealer but obviously it hadn't as it wasn't scheduled! Paul also said that even Mercedes quote a 35,000 mile gearbox oil change interval for their cars but recommend shorter intervals for sportier driving! I have had a quick check round and some Motorsport outfits change the Evo gearbox oil every 4,500 miles!
I just thought I better let everyone know that the standard interval Ralliart recommended for changing the gearbox oil (and diffs) is entirely inadequate unless, as Paul put it so well, you drive like a complete granny!
We both recommend a 9000 mile or 13,500 mile interval would be more appropriate (18,000 miles seems too much given the bearing problems).
Make sure your Gearbox oil is changed at the intervals we have suggested and you will hopefully never have the bearing problem. If you do trackdays then even consider changing the oil after each event! For the sake of £30 and 10 minutes of your time it is worth it. I did mine recently and you don't even really need to jack the car up, it also improved the gear change quite noticeably!
Just for information Paul, a friend of his that rallies a group N Evo 6 and myself all use Castrol Syntrax Universal (Part Synthetic, meets GL3,4 and amp; 5 specs and is recommended for Japanese gearboxes). Its available from Halfords for £9.99/1 litre, the Evo 4-6 box takes 2.8 litres. I know Redline oils are also recommended by many people on here but any oil you use should be 75W-90 and of good quality make.
I know this is probably old news to people who service their cars themselves or get it done by decent Motorsports outfits but to everybody else who are stuck with Ralliart approved dealerships then you definitely don't want to wait to 45,000 miles to change your gearbox oil!
Thanks for listening and believe me this is important if you don't want early gearbox failure!
Thanks goes to Paul (GSRed) for his help
I have just been discussing the current gearbox bearing problem with Paul Curran (GSRed, my transmission expert
Just to recap briefly on the gearbox bearing problem
It seems to be a growing problem with the Evo 4-6 that the gearbox bearings wear out prematurely. I know of at least 4 or 5 people who have had this problem fixed at my local Ralliart approved Mitusbishi dealer so nationwide there must be a lot more. It seems that the bearings wear out from anywhere between 15,000 to 25,000 miles but it has been known to happen earlier. I had put this down to a possible manufacturing fault or poor design (still might be) however something else came to light today when Paul and I were discussing it.
I was checking back through my records and I came across the Ralliart service sheet (the tickbox thing). On it they obviously list the various servicing points (4,500 miles, 9,000 miles etc.) and what they check or change. I was looking for when they change the gearbox oil. I couldn't believe when I saw they only change the gearbox oil at 45,000 miles! YES 45,000 miles! On such a high performance car as the Evo this is absolutely ridiculous! (even to my uneducated mind). Paul couldn't believe the interval either and after we exchanged quite a few expletives he went on to explain he changes his own gearbox oil every 12k miles which to me is entirely sensible. For some reason I thought Ralliart recommended every 18,000 miles but obviously this is not the case, I thought mine had been changed by my dealer but obviously it hadn't as it wasn't scheduled! Paul also said that even Mercedes quote a 35,000 mile gearbox oil change interval for their cars but recommend shorter intervals for sportier driving! I have had a quick check round and some Motorsport outfits change the Evo gearbox oil every 4,500 miles!
I just thought I better let everyone know that the standard interval Ralliart recommended for changing the gearbox oil (and diffs) is entirely inadequate unless, as Paul put it so well, you drive like a complete granny!
We both recommend a 9000 mile or 13,500 mile interval would be more appropriate (18,000 miles seems too much given the bearing problems).
Make sure your Gearbox oil is changed at the intervals we have suggested and you will hopefully never have the bearing problem. If you do trackdays then even consider changing the oil after each event! For the sake of £30 and 10 minutes of your time it is worth it. I did mine recently and you don't even really need to jack the car up, it also improved the gear change quite noticeably!
Just for information Paul, a friend of his that rallies a group N Evo 6 and myself all use Castrol Syntrax Universal (Part Synthetic, meets GL3,4 and amp; 5 specs and is recommended for Japanese gearboxes). Its available from Halfords for £9.99/1 litre, the Evo 4-6 box takes 2.8 litres. I know Redline oils are also recommended by many people on here but any oil you use should be 75W-90 and of good quality make.
I know this is probably old news to people who service their cars themselves or get it done by decent Motorsports outfits but to everybody else who are stuck with Ralliart approved dealerships then you definitely don't want to wait to 45,000 miles to change your gearbox oil!
Thanks for listening and believe me this is important if you don't want early gearbox failure!
Thanks goes to Paul (GSRed) for his help