Gearbox Graunching

Alice1

Free Member

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Have a Ravenna on Peugot Boxster Chasis. 1.9 Great problems going from first to second gear. Done a full gearbox oil change with no result. Any helpful suggestions our there?
 
I have slight crunching going into 5th gear and mine is a brand new Citroen. It only happens for the first few miles until the engine heats up. I did read it was something to do with the oil, but I am no expert.
 
I occasionally have a gear crunch, nothing to do with the gearbox, just a lazy left leg. Think it was caused by driving Bristol Lodekka's for a living, when I was somewhat younger.
 
If the incorrect grade of oil has been used in the gearbox i.e higher viscosity than recommended then there is a good chance that gearchanges could be rough. Do you find that once everything is hot the gearchange improves?
 
saxonborg said:
If the incorrect grade of oil has been used in the gearbox i.e higher viscosity than recommended then there is a good chance that gearchanges could be rough. Do you find that once everything is hot the gearchange improves?
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Yes
 
There seem to be many reports of water from the scuttle getting into the gearbox of these. Plenty of reports of gearbox troubles, an example HERE
Have a google, there are plenty of solutions for exact problems, this sounds like possibly the synchro.
 
Yes 75/90 sinthetic and add a we bit extra or some slick 50,my iveco does this untill a mile or so,i was told to use 80/90 which in fact is to thick.
 
I have fiat Ducato 2.8 JTD my gear box was ruff going from 4th to 5th and back in my manual it said use 75W 80 GL5 but I read on line to put fully synthetic 70W 80 GL4 so that's what I did and it's like I've got a new gear box, It said that GL5 wears away brass bushes and when I draid the oil out it had a copper ting on top
 
colbeb said:
I have fiat Ducato 2.8 JTD my gear box was ruff going from 4th to 5th and back in my manual it said use 75W 80 GL5 but I read on line to put fully synthetic 70W 80 GL4 so that's what I did and it's like I've got a new gear box, It said that GL5 wears away brass bushes and when I draid the oil out it had a copper ting on top
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Yes iveco state that about copper,i am using 75/90 standard oil at moment with slick 50,its getting better with only a few short trips.
Problem was van had a low diff and was started of in second which is common,i fitted a higher ratio diff so now coming from first to second when cold was a prob.
 
My 5th went a few years ago, the repair man said he only seemed to see it on motorhomes and suggested that a little driver training wouldn't go amiss, 1st was to not go near 5th on a Jtd until you were up around 50mph, the torque was just not there to support it and caused slight judder between the two halves of the 5th gear, 2nd was to drop to 4th now and then to get some oil around the 5th gear case, 3rd was not labour it up hills in 5th when the revs dropped below 2500, 5th is essentially an overdrive to the original 4 speed box.
 
And 6th... :)

Edit: 6th gear I meant
 
Alice1 said:
Have a Ravenna on Peugot Boxster Chasis. 1.9 Great problems going from first to second gear. Done a full gearbox oil change with no result. Any helpful suggestions our there?
Click to expand...
One of things we must realise with van conversions, is that when the manufacturer designs the van everything is made in strength terms for only a half_loaded van. Then we fill it with furniture and white goods, and tanks full of water, so that by the time you are in it with all your bits it is fully loaded all the time. So the gearbox in particular, wheel bearings, springs and shocks will wear out that much faster. French, and Spanish mountains finally did for it. We couldn't engage 1st when standing and needed to double declutch, especially going down into 2nd for hairpin bends.
I had read that the gearbox parts were no longer available for my Peugeot Boxer (petrol 1999), but found that Gloucester Rd Gear boxes at Bristol could find new synchro rings etc. They did a good job, now the gearbox can do another 60,000 miles. I agree with the notes on other threads, correct oil type is important. Make sure that the level is checked when you get a service. The seals on the drive shafts can wear so you loose oil.
 
colosborne said:
One of things we must realise with van conversions, is that when the manufacturer designs the van everything is made in strength terms for only a half_loaded van. Then we fill it with furniture and white goods, and tanks full of water, so that by the time you are in it with all your bits it is fully loaded all the time. So the gearbox in particular, wheel bearings, springs and shocks will wear out that much faster. French, and Spanish mountains finally did for it. We couldn't engage 1st when standing and needed to double declutch, especially going down into 2nd for hairpin bends.
I had read that the gearbox parts were no longer available for my Peugeot Boxer (petrol 1999), but found that Gloucester Rd Gear boxes at Bristol could find new synchro rings etc. They did a good job, now the gearbox can do another 60,000 miles. I agree with the notes on other threads, correct oil type is important. Make sure that the level is checked when you get a service. The seals on the drive shafts can wear so you loose oil.
Click to expand...

Thanks everybody for the info. The Moho has gone to the garage after changing the oil (which was emulsified) didn’t make any difference. Expecting a big bill for gearbox rebuild/exchange ☹️
 
Some people on the Fiat forum recommend ATF oil, but I'm not brave enough to try it myself :unsure:

Regards,
Del
 
Alice1 said:
Thanks everybody for the info. The Moho has gone to the garage after changing the oil (which was emulsified) didn’t make any difference. Expecting a big bill for gearbox rebuild/exchange ☹️
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Hi All,
Well the gearbox has been rebuilt and the clutch replaced. She drives like a good’un! No graunching, smooth changes, and a nice light clutch that bites at the bottom of the travel. Just as it should be.
Now the ouch! - £1000. But it did include the clutch?.
 
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Alice1 said:
Hi All,
Well the gearbox has been rebuilt and the clutch replaced. She drives like a good’un! No graunching, smooth changes, and a nice light clutch that bites at the bottom of the travel. Just as it should be.
Now the ouch! - £1000. But it did include the clutch?.
Click to expand...
That seems like a good price. Care to share where you had it done. It could be worth travelling to,
 
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