Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

[jw2000uk]

Hi lads..

There is a knocking noise behind the gear case cover..

The exhaust is routed elsewhere, so its not that popping..

Its also about 2" from being fully down on its lock bar (trailer is in the way).. Could this be why..

Or is it normal??

Old gear case oil was clean.. New just been put in..






http://www.youtube.com/watch?v=vh8yqQ4pcGU&feature=youtube_gdata_player

 

[Don S]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

That is NOT normal
Is there oil in the drive?
Sounds like gear backlash rattle from a rough running engine, except for how loud it is, but that could be due to how you recorded it.

 

[jw2000uk]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

That is NOT normal
Is there oil in the drive?
Sounds like gear backlash rattle from a rough running engine, except for how loud it is, but that could be due to how you recorded it.

Thanks as always for your replys don..

Ive filled with new 30w gear oil.. Through drain plug, topped up in dipstick, as i couldnt get the fill screw undone..

Also fitted new shift cables.. But i disconected tht and moved the gear selector slightly by hand, but still the same noise.. Even in gear it makes tht noise.

 

[jw2000uk]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

No, not normal. Time to remove the drive and start looking for the problem. Question, does it sound like that in the full down position? If not, the u-joints would be my first suspect.

Just to make certain, you followed the shop manual and are CERTAIN you have the correct amount of lube in the drive, right? Just topping it off from the top won't do it.

Heres the annoying thing.. Its 2-3 inches from being fully down. And id have to launch the boat to test, as i cant get the boat back on the rollers.. And the legs resting on a roller..

Around 2.6 liters, and it shows perfect on the dipstick.. Is tht a good guide??

 

[jw2000uk]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

Sounds right. Time to take it off the boat.

Would the 2-3 inches tilt make a difference??

Or shall i count that out, and wip it off?

 

[Don S]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

Check the gear lube again, i would bet that it's showing low. Did you get 2 1/2 or more quarts in it when you filled it?

 

[jw2000uk]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

Check the gear lube again, i would bet that it's showing low. Did you get 2 1/2 or more quarts in it when you filled it?

I put around 2.5 to 2.6 uk litres in..

Although, when i drained the old, only 2.2 litres came out...

On the dipstick its shows about a inch up from low.. I.e. In the middle of the dipstick recess.

Could it be trapped air in the leg from filling it with oil?

 

[jw2000uk]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

Just found this.

Could be the gear case oil level.. Dip stick should be undone and resting in hole to check, and oil should be at the top of the flat recess......


Well i checked with the dipstick screwed in.. And it wasnt at the top of the flat recess.


Could this make a difference??

 

[jimduncan1]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

Thanks as always for your replys don..

Ive filled with new 30w gear oil.. Through drain plug, topped up in dipstick, as i couldnt get the fill screw undone..

Also fitted new shift cables.. But i disconected tht and moved the gear selector slightly by hand, but still the same noise.. Even in gear it makes tht noise.

Not sure how significant but on my 290 drive, the gear oil spec was 75w/90 and I noticed you've used 30w ??

 

[Don S]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

I noticed you've used 30w ??

That is what is supposed to be used in the single prop drives. if your 290 is a single prop, you should be using engine oil also.

 

[jimduncan1]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

That is what is supposed to be used in the single prop drives. if your 290 is a single prop, you should be using engine oil also.

Thanks didn't realize that posters sterndrive was a SP model, whereas mine was a Duo Prop, which the Volvo spec calls for:
API GL-5, SAE 80W90, 2.7 liters

 

[jw2000uk]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

Thanks for the help so far ;-)

So here goes..

Turns out the UJ bellow did have a split in it.. So sea water has been in there...

Got the leg off

heres my questions..

Pic 1. - Is the gimble bearing behind them 6-8 bolts?? can i replace it from the outdrive side?

Pic 2 - That piece of metal was inside the uj bellow, and possibly behind the knocking noise?? i cant see no sign of where it came from.. Was it a cap for the spline??

Pic 3 - the UJ's on the leg move freeley,and NO slack in them.. Im hopeing salt water hasnt got past the seal?? Although, when i drained the old oil, it looked fine.


K, i could of wrote and asked loads more lol, but am desperate for the main answers...


I thought

1. new gimbal bearing.

2. new bellows

3. new water intake thinghy (bit that bolts on)

and go from there???






http://s6.photobucket.com/albums/y208/jw_2000_uk/?action=view&current=IMG_0004-1.jpg

 

[captmello]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

I would run the engine without the outdrive to see if the noise goes away. Pull the impeller so it doesn't melt and only run the engine for 15-30 seconds, just long enough to determine if the noise is still present.

Check the drive shaft, the splined shaft that the ujoint yoke goes to, is there any play, up or down, side to side, in or out? If there is movement the bearings are bad.

What engine do you have?

 

[jw2000uk]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

Hi, i will try that later ;-)

I think there is a little play in the shaft..

Would tht be the gimble bearing???

Is tht behind the plate in pic 1??

Engine is a ford transit 2.5 1997ish

Cheers

 

[jerryjerry05]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

Shaft:If there is and side to side play that can't be taken care of by adding grease(add inside). Then it probably needs bearings.
I don't think there is a gimbal bearing on that motor.It has shaft bearings behind the seal you show in pic1
Video:sounds like a u-joint???
You can try greasing the h&%$ out of it.Replace the u-joints and new bellows.It might last a while.
What motor or Volvo # for the motor?
Post a pic of the motor/bellhousing.J

 

[captmello]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

Hi, i will try that later ;-)

I think there is a little play in the shaft..

Would tht be the gimble bearing???

Is tht behind the plate in pic 1??

Engine is a ford transit 2.5 1997ish

Cheers

1997 Ford?? Are you sure. The 280 outdrive had been long since retired by 1997.

How about some pics.

 

[sqbtr]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

From the photos it looks like the transom shield is toast, The boss is broken where the lift rod comes through.

With all that rust, check the sealing washer carefully.

I would definately change the primary drive shaft bearing (what you are calling the gimbal bearing) there is no gimbal in a 280 drive.

JMHO

I didn't think volvo ever used a 4 cyl ford.

Show some pics of the engine

 

[jw2000uk]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

Thanks for all the replys lads...

I went and bought all new bellows etc today..

And there was some play in the shaft..

So im attempting to replace all the drive shaft bearings/seals (now learnt its not a gimble lol)

removed 5 of the 6 bell house bolts... BUT on the 6th one the head broke, and left 4" of thread in there :-(

Got someone coming round Saturday, who can extract it hopefully...??

Regarding the engine, its 100% a ford transit inboard.. its been marinised and installed by someone before in the UK. the boat wasn't designed for inboards to start off with...

 

[jw2000uk]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

Ive heard i need to slide the engine forward to replace the shaft bearings??

@sqbtr ...we had a knightmare with the tilt... it did brake, but a bit of welding, and tones of sikiflex, means it comes down in line, and lifts the leg perfect..

@jerry ..pic added... do you mean the Ujoints on the leg... ive moved them,and theres NO play in them (except for the obvious movements), and they rotate smoothly.. im assuming thats a good thing??

@capt ..pic added ;-)

 

[sqbtr]

Re: Volvo 280 knocking noise.. Is this normal?? Video inside ;-)

When you are talking about the bell housing bolts are you refering to the 6 bolts accessed from the aft side of the transom, if so the bolt need not be extracted pull the clamping ring off and the engine and flywheel cover will slide forward.

Boat u-joints are different than autos in that there is not much movement in them, they tend to gall in one spot. pull them apart and check them visually.