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Backwards compatability

3K views 22 replies 8 participants last post by  Al- 
#1 ·
Has anyone found a list of parts from the newer Gen bikes that can be used on the earlier models? I’ve found that many parts on my bike can be traced back to the 916 Ducati era and given that a lot of designs were simply reused it seems natural that some items would be geometrically the same and may fit the older models.
 
#2 · (Edited)
Swingarm, Front axle from 1st Gen radial forks and 2nd gen Ohlins, Phonic wheel cover, clutch cover, front sprocket cover, rear wheel, passenger pegs, mirrors, rearsets (w/spacers), triple clamp (not Ohlins RR), steering nut. I think the engine valve cover also fits. I'll know for sure in the coming weeks.
 
#7 ·
I have a crash damaged F4RR low mileage motor which i am stripping.I found water pump, gearbox cassette and clutch basket, clutch slave, pushrod, cylinder block/head, crank/rods/pistons, rear water manifold and crank case breather cover all seem to be interchangeable onto earlier gen 1 cases.
Comparing engines side by side, the 2010 onward engine upper lower cases are differrent to Gen 1, integrated alternator winding/flywheel on upper case, oil cooler take off on lower front, sump pan and oil pick up (internal oil filter) oil pump all differrent. Hope that helps.
If anyone wants any F4RR engine parts pm me....
 
#9 ·
Italian Job, the engine mounts appear the same although the cast frame plates are a differrent shape as is the steel trellis frame where the upper hanger is. I have a spare set of gen 1 cast plates so i will offer them up to the F4RR casings to check when i get back home although i dont have a gen 2 main frame.
My guesstimate would be a later bare engine would drop straight into a Gen 1 frame using all gen 1 tank and throttle bodies (from a 1000cc motor). with gen 2 external oil cooler. Although slight modifications to gen 1 wiring loom would be required for alternator, also the neutral switch and speed sensor as gen 1 has its pick up on gearbox output shaft and later has sensor on rear wheel/brake disc reluctor ring (also used on ABS withan additional one on front wheel) or you could fit earlier gearbox cassette straight into later casing to overcome speed sensor issue. My guess is they would have kept same geometery and many components to reduce parts varients on inventory although part numbers may be differrent they may still fit. But, this is a good idea as older parts get scarce knowing what bits are inter-changeable.
 
#18 ·
Italian Job, the engine mounts appear the same although the cast frame plates are a differrent shape as is the steel trellis frame where the upper hanger is. I have a spare set of gen 1 cast plates so i will offer them up to the F4RR casings to check when i get back home although i dont have a gen 2 main frame.
My guesstimate would be a later bare engine would drop straight into a Gen 1 frame using all gen 1 tank and throttle bodies (from a 1000cc motor). with gen 2 external oil cooler. Although slight modifications to gen 1 wiring loom would be required for alternator, also the neutral switch and speed sensor as gen 1 has its pick up on gearbox output shaft and later has sensor on rear wheel/brake disc reluctor ring (also used on ABS withan additional one on front wheel) or you could fit earlier gearbox cassette straight into later casing to overcome speed sensor issue. My guess is they would have kept same geometery and many components to reduce parts varients on inventory although part numbers may be differrent they may still fit. But, this is a good idea as older parts get scarce knowing what bits are inter-changeable.
I've done this swap and you are largely correct. Some issues you will run into concern the electronics and how the specific engines you are replacing manages its cam timing strategy. You won't be able to easily swap a later F4 engine into a 2007-2009 bike without making a hybrid harness to run the later model ecu and sensors. You may be able to swap it into an early 1000s or 750 F4, however you'd be limited in ecu tuning options unless you opt for a microtec or other ecu that has some flexibility. Essentially the later motors are lacking the cam sensor and use a pressure sensor on cylinder 1 to allow the ecu to read cylinder one top dead center, which is the strategy that Xbikes uses on their newer microtecs for early MVs.
 
#10 ·
I remember when the new gen bikes first came out they spoke of small pivot height changes and lengthening the swingarm but overall nothing huge. I would guess evolution over revolution.
Given the financial situation of MV around when my bike was built and the subsequent short cuts I’ve seen it would be nice to update wherever possible even just from the standpoint of parts availability. I just rebuilt my fuel pump unit using a bunch of old 916 parts and a Miata fuel pump, sooo..
 
#11 ·
  1. I have seen some ltd edition tambo with an extra hole in the frame plates where rear upper suspension rocker mounts, so allowing physical adjustment to mount. Most of std machines only have one hole in centre of that slot. I added a pic of the tambo one from my mv porn library lol. (Never seen a real one in the flesh). I have also rebuilt an mv tank for another Brutale using a ducati 916 fuel pump base and it fits right in, but as both Ducati and MV use CRC design no surprise there are was a common parts bin for some bits...
  2. 476700
 
#12 ·
I wonder if the second hole has to do with the special Sachs shock they used on that bike. Maybe it’s shorter or something and they needed to move the pivot down to accommodate it without throwing off the geometry.
I was curious if the 916 base would fit the tank, I wasn’t certain so I didn’t want to just purchase a complete assembly.
 
#13 ·
The pump unit base plate again is a CRC part, the alloy casting is same for 916 and F4. I fitted it in a gen 1 Brutale tank (which is plastic not, metal like gen 1 F4. I think i had to elongate a couple of the holes and use washers to clamp it down, but it fits and works, oh and fuel filter is same as triumph/bmw and some rover cars! Electrical connections same and qd fuel connectors
Similar thing with ducati 916 timing belts -cost a fortune in ducati parts bag but identical belt used on some Fiat cars and a fraction of price....... cross referencing can save £$ and same parts
 
#19 ·
Al, My thought was if the casings would fit earlier frame, but as a basic engine lump and use original gen 1 ecu/clocks/throttle bodies/coils from a 1000cc bike. Didn't spot the cam sensor difference, so good call there, although my project i am using loom ecu and throttle bodies etc on a 910r gen 1, i will look at the cam sensor issue as i have the pressure sensor still on the the loom. depending on how much of a 'donor' you had , i suppose you could use entire loom ecu throttle bodies on later engine and fit to a gen 1 rolling chassis...
 
#23 ·
At least for 2010+ F4 engines, you are pretty restricted to using the early gen throttle bodies unless you are willing to make frame modifications and a custom air box lower. The tss system is much taller than the early tss found on the tambo and cc. It could be made to work but I lost motivation and just ran mine with gen 1 throttle bodies and no tss.
 
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