DPE intermediate bearing

simonfraser

simonfraser

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i am no mechanic, this is the bearing that the shaft forward of the U joint fits into ?
sits in the transom shield ?

can this be tested as it may be worn and causing vibration ?
and is it removable from the stern ?

p.s. the gear shift cable on a KAD44 EDC goes straight from the KAD to the DPE and thus is relatively simple to replace ?

tnx
 
There shouldn’t be any movement on the shaft if you tried to move it sideways or in and out, obviously you can’t check if its notchy as its splined into the rear of the engine. You can remove it by first pulling out the seal then the plastic spacer ring which often breaks, then digging around in the grease you will find a large circlip which holds the bearing in, when thats off you can pull the shaft out complete with bearing.
Yes the gear cable is easy to change, I usually fit two of the 8 m nuts back to back right on the end of the thread with a bit of grease to help it through the transom, if you just push the cable up it often digs in when it reaches the bend just where the rubber section starts unless you have a straight run from inside the transom which is usually only when the engine is out.
 
spannerman said:
There shouldn’t be any movement on the shaft if you tried to move it sideways or in and out, obviously you can’t check if its notchy as its splined into the rear of the engine. You can remove it by first pulling out the seal then the plastic spacer ring which often breaks, then digging around in the grease you will find a large circlip which holds the bearing in, when thats off you can pull the shaft out complete with bearing.
Yes the gear cable is easy to change, I usually fit two of the 8 m nuts back to back right on the end of the thread with a bit of grease to help it through the transom, if you just push the cable up it often digs in when it reaches the bend just where the rubber section starts unless you have a straight run from inside the transom which is usually only when the engine is out.
Click to expand...

Isn't it a case that some VP setup have one bearing and others have two? From my understanding, the single ones can be done from the stern, but the two bearing systems need the engine shifting forward and done from inside the boat. I may be wrong, it did happen once :ROFLMAO:
 
Looks like the AD31/41 is a single bearing setup, so should be OK to come out the back. Just need to find a way of getting a slide hammer to attach to the end of the drive shaft. Is there a thread in it?
 
simonfraser said:
does the forward end of the U drive shaft not 'just' slide into the bearing and then into the gearbox / engine ?
Click to expand...

I've only ever done one, and that time the shaft and bearing came out as one. The bearing was a tight fit on the shaft and also a tight fit into the housing. I don't think anything is gonna just slide out. From memory, I think the shaft actually has a retaining ridge just forward of the bearing, meaning it can't come out aft without bringing the bearing with it.
 
In fact the drawing here does show the shaft with the ridge/collar that I am talking about.

25754.jpg
 
tnx CLB,

shaft 4 never going to come out easily is it , no thread on the aft end as far as i can see :unsure:
CLB did you knock it out from the forward side ?

anyone else replaced bearing 5 ?

only considering this as the bearings on the U joint are likely worn and there will be access to bearing 5
 
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simonfraser said:
tnx CLB,

shaft 4 never going to come out easily is it , no thread on the aft end as far as i can see :unsure:
CLB did you knock it out from the forward side ?

anyone else replaced bearing 5 ?

only considering this as the bearings on the U joint are likely worn and there will be access to bearing 5
Click to expand...

Yes I knocked it out from forward as my engine was also removed. I know it can be done from aft, but the trick is working out how to fix a slide hammer to the shaft. I couldn't remember if there was an internal thread on the aft end or not. I remember reading about people who had done it, I just can't remember the exact details.
 
CLB said:
No Probs

Volvo Penta Exploded view / schematic Flywheel Housing and Primary Shaft - MarinePartsEurope.com
Click to expand...

Thank you. I thought I did not recognise it. This is not from the KADs and I dont recognise it from mine. I dont think it's from the DPD or E either. Having put my drives in countless times I have never come across a gimbal or intermediate and I have spent countless hours with my hands delivering the baby through the bellows as I line up shafts. If there was a bearing there I wouldn't need to.
So, are we sure these are relevant to KADs on DPD/E?

(QUite possibly my imagination is being thwarted by my experience of Mercruiser systems)
 
so Bruce you recon the forward part of the U jointed shaft just fits into the aft part of the engine without any further bearing support ?

these are the numbers i have for my setup

serial no: 3868724 TSK DP-E (AQ)
Engine no: 2204408292
Transom shield no: 3868724
Drive no: 3102207460

if that is of any help
 
Bruce, a volvo setup is very different from Mercruiser, I work with both as I rebuild drives almost every week. Mercruiser has the long splined shaft which engages with the coupling on the flywheel, VP have a short shaft also going into a splined coupler but the other end is supported by a bearing in the shield and the UJ splines onto the part protruding out towards the bellows.
 
I am aware of that but two things threw me. Firstly Simons description "this is the bearing that the shaft forward of the U joint fits into " I interpreted as the UJ forward shaft and not a separate shaft which is then akin to a mercruiser gimbal bearing and secondly CLB's diagram of the flywheel housing which does not look like what I have on my transom and indeed dont on further investigation. Mine is a spindle on twin bearings while earlier and later variants are on a shaft with a single bearing. I've not heard of the twin bearing 42 design ever failing before but of course that is not to say it doesn't.
 
spannerman said:
Bruce, a volvo setup is very different from Mercruiser, I work with both as I rebuild drives almost every week. Mercruiser has the long splined shaft which engages with the coupling on the flywheel, VP have a short shaft also going into a splined coupler but the other end is supported by a bearing in the shield and the UJ splines onto the part protruding out towards the bellows.
Click to expand...

Early Volvo Penta outdrive Jackshaft
This has two bearings.

Splines on shaft.
 
oldgit said:
Early Volvo Penta outdrive Jackshaft
This has two bearings.

Splines on shaft.
Click to expand...
We never see those anymore and the later single bearing type are becoming few and far between as these boats are getting on and the owners to don’t want to spend much on servicing at authorised workshops, a bit like the car market. Most of our customers boats are less than 10 yrs old.
 
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