simonfraser
Well-Known Member
forward, sweet as anything, reverse a bit of a clunk.
i would expect it to clunk a bit either way ?
i would expect it to clunk a bit either way ?
DPE clunks changing direction
- Thread starter simonfraser
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Greg2
Well-Known Member
That is my understanding. When there is no clunk it indicates that the cones are worn I think.
Momac
Well-Known Member
One on mine does the same.
It has been so the last 4 years and over 400 hours
The other one clunks both ways.
NBs
Well-Known Member
Hi,
Yes, soft gear shift VP stendrives is a sign of repair in the future, due to the cone of the clutch slip.
Clunk is just a sign that the cone clutch works just as it should do when everything is fine.
I would not like to say this, but you should be in the position that in the near future, when you turn the gear forward, the gear will no longer engage. I recommend you to change the cone switch at a suitable occasion, eg for winter storage. The right quality oil is the key to the long and worrying life of the gear. Wrong oil polishes the clutch cones quickly as it slips.
NBs
Sailorsam101
Well-Known Member
Agree with the above. A clunk into reverse is a good sign...silence means your cone clutch is going. I know as Volvo Paul did one of mine last year.
rlw
Well-Known Member
+1 clunk is good, no clunk means getting near to end of life. For me these usually needed to be replaced around the 1000 hour mark on a dp or dpe. Usually when the end is near the the engine revs a bit more before engaging. If this happens the end is very near. Worth considering doing when doing a bellows change in the winter as if you have to do this in the season liftout and drive removal close to doubles the cost. do cables at the same time if not already changed.
simonfraser
Well-Known Member
tnx rlw, 500 hrs on the engine, 20 yrs old. bellows done 04 2018, boat on a trailer.
so the drive has to come off, you suggest changing the cables too.
gear changing cables ?
what else would be sensible to renew at the same time once the drive is off ?
so the drive has to come off, you suggest changing the cables too.
gear changing cables ?
what else would be sensible to renew at the same time once the drive is off ?
rlw
Well-Known Member
OK I did not realise it is on a trailer. If you can haul it out yourself I would just keep on boating untill it slips when engaging gear. Especially if the bellows have just been done.They do not seem to fail instantly. I would replace the gear shift cable as well. Did this myself once as no engineer was available and wanted to get back on the water.
rlw
Well-Known Member
To be honest. Not sure if the drive has to come of. I think that might depend on the person doing the job. shaft seals will probably be past there prime at 20 yrs old but again if on a trailer I would use it untill signs of issues. (oil in the water)
simonfraser
Well-Known Member
tnx, have made a note regarding the gear shift cable too.
good to know the failure is relatively slow.
