Ducati Supersport 939 Forum banner

1 - 20 of 25 Posts

·
Registered
Joined
·
6 Posts
Discussion Starter #1
Hi, had me SS for just over a year, and recently had a catastrophic failure and I was hoping to get some much-needed advice.
I have very little knowledge when it comes to the internals of my SS as the next few sentences will confirm this but am happy to roll my sleeves up and spend my winter getting my SS back on the road.
I had my local Ducati garage look at the bike, but they were going to charge me pretty much the cost of the bike and then said they could not promise to find even more issues while repairing the bike.
The reason for the catastrophic failure was my fault, I thought I put the oil in the right place and I did not, so it ran bone dry, not sure what I was thinking, but I am going to mark this experience to one of my most stupidest ones!
The following is a report of what the mechanic found:

------
Horizontal cylinder timing belt has partially snapped and not on the exhaust cam pulley
Compression test; front cylinder at 0.45BAR.
Drained oil to remove valve covers; only 625ml oil from sump, and none in the cylinder head.
Horizontal cylinder inlet camshaft starved of oil and seized. This caused belt to rip and come off pulleys. Piston has hit exhaust valves.
Engine strip required for accurate quote; suspect full engine rebuild needed.
------

So my question is, is stripping the engine and rebuilding something a novice could take on (i.e. me) or should I look to replace the engine, again is that something a novice with determination could do, for example have found the following engine on ebay:
2018 Ducati Supersport S 937 - Complete Engine - Breaking Full Bike | eBay
Sorry for all the questions and appreciate any advice!
 

·
Registered
Joined
·
374 Posts
@bil00r damn, that's some crap news. Sorry, but I don't know enough about engine internals to help you, but I wish you all the luck in the world (y)

I imagine that whilst you are willing to get stuck in as a novice, there will no doubt be a number of specialist tools you will need for an engine strip and rebuild. Maybe the engine in ebay is the way to go? Only issue would be you don't know the history of the engine your buying.

There are loads of members on here with the mechanical aptitude to help you.
 

·
Registered
Joined
·
6 Posts
Discussion Starter #3
@bil00r damn, that's some crap news. Sorry, but I don't know enough about engine internals to help you, but I wish you all the luck in the world (y)

I imagine that whilst you are willing to get stuck in as a novice, there will no doubt be a number of specialist tools you will need for an engine strip and rebuild. Maybe the engine in ebay is the way to go? Only issue would be you don't know the history of the engine your buying.

There are loads of members on here with the mechanical aptitude to help you.
Thanks for that! Yes, my thoughts were the same with regards the engine! And yes the forum looks great with regards loads of helpful people and loads of know how!
 

·
Registered
Joined
·
374 Posts
Not wanting to put a further dampner on your already piece of bad luck, but make sure you check the history of the engine if you can; it could have come from a stolen bike. If you do buy and fit it, remember that after fitting it you will have to let the DVLA know as your engine number wont match the one on your V5 Registration Certificate. The new engine will probably have Datatag coding/paint/microdots on it too - not a problem, but something to be aware of.
 
  • Like
Reactions: Ed K

·
Registered
Joined
·
174 Posts
Horrible! Sorry to say and no intention of putting you down, but If you were able put oil in the wrong place I think the wise choice will be to have a pro do the rebuild (which may not be feasible) or put in another engine.
Feel really sorry for your misfortune.
 

·
Registered
Joined
·
6 Posts
Discussion Starter #6
Thanks @Triplesapper, that is good to know.

@Capone, no offence taken as I feel like a muppet, but would like to think my actions are not indicative of my capabilities. Has been a massive lesson that I am going to make sure I learn from, not even sure now how I could have been so stupid.

I suppose my other option is to put it on ebay, being as honest as possible and let someone else take on the project.
 

·
Registered
Joined
·
2,145 Posts
That engine might be terminal.

I might have a line on where you can get a replacement engine. I have no idea what they want for it. I recently tore up the exhaust on my 939 with road debris. I was able to source an exhaust header there. The parts guy mentioned he had to grab the gasket off the original engine, so unless they sold it Friday, it should still be there.

Contact Imperial Sporsbikes in Denver. (303) 573-6600


Note: I just noted that you're on the UK. I'm not sure how shipping and registration might work. And that you had found a replacement engine.
 

·
Registered
Joined
·
2,145 Posts

·
Registered
Joined
·
1,023 Posts
This type of engine (and chassis) would make me slightly hesitant to do a full rebuild unless I was ABSOLUTELY sure of my abilities and even then probably spring for a used engine and simply swap.

It's not impossible but will require a load of specialized tools you may never use again.

Your call, mine would be engine swap. The fact that the engine is such a huge part of the chassis will already make that an interesting enough project.
 

·
Registered
Joined
·
2,145 Posts
Since there is internal damage, even reparable, machine work would be very likely necessary. So not only parts, but also a reputable machine shop would be part of the plan.
 

·
Registered
Joined
·
351 Posts

·
Registered
Joined
·
6 Posts
Discussion Starter #12
Thanks all, looks more and more like it is worth me sourcing the engine and then looking for a good local mechanic that can do the job. Although would have been interesting to get to know my SS a bit more.

@LowRyter, engine looks good especially as tested, but when you include P&P would prefer to source an engine more local.
 

·
Registered
Joined
·
2,145 Posts
Make sure whatever engine you get that it is not only serviceable but also make sure that all the bosses and mounts haven't been broken. Notice the ebay photos show those.

Remember, everything on the bike bolts to the engine. The engine is essentially the frame.
 

·
Premium Member
Joined
·
2,429 Posts
I think an engine swap will be a much more productive use of your time and money. You could probably venture into splitting the cases on a low-volume thumper and come out clean but doing it for the first time on a late model Duc is a recipe to turn your SS into an albatross around your neck. You want to get back on the road and the engine swap will be a great learning opportunity by itself.
 

·
Registered
Joined
·
165 Posts
+1 on the opportunity to put a 1200 monster engine
 
  • Like
Reactions: Ed K

·
Registered
Joined
·
2,145 Posts
If you get a 1200 engine make sure you get the ECU. And there are several 1200's: MS, Monster, Diavel, which mount in the SS?
 

·
Registered
2017 Ducati Supersport, 2015 Ducati Scrambler Classic, 1994 Ducati 907ie
Joined
·
1,656 Posts
If you get a 1200 engine make sure you get the ECU. And there are several 1200's: MS, Monster, Diavel, which mount in the SS?
The Multistrada and Diavel engines won't fit. They are mounted conventionally with the frame bolted to the crankcase not the cylinder heads. The only alternative engines that would fit are the 821 and 1200 Monster engines.
 

·
Registered
2017 Ducati Supersport, 2015 Ducati Scrambler Classic, 1994 Ducati 907ie
Joined
·
1,656 Posts
I'm curious - where did you actually pour the oil that you thought was going into the crank case?
I was wondering that too.
 
1 - 20 of 25 Posts
Top