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Come in Spinner :)
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Discussion Starter #1
I have two 748 engines, the first is in my 2000 748 and the second one I bought to rebuild.
I believe they are both year 2000 engines.

Numbers are:
1/. ZDM 748W4014464
2/. SB 3Y014799

Questions are:
1/.why are the engine numbers so different?
2/. Which engine was built first?

The reason I ask is the second engine does have the later steel plug in the crank oil gallery and the first one as it's still in the bike I don't know and Ducati can't tell me.

.
 

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#2 IS is a USA number, not sure why they were different, probably some US requirement. #1 is the euro style. the actual 6 digit # at the end will be of the same sequence though.

i'm surprised a 00 motor has a steel plug.
 

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Come in Spinner :)
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Discussion Starter #3
Thanks Brad

I'm surprised it's a US motor too as I bought it from a bloke in Melbourne last year. ( looking inside at how trashed it is makes me think it could be one of Tye's old ones :) )

They did change from alloy to steel plugs in 2000, just they didn't record the change point so it's like russian roulette.
When I asked Ducati Australia about the #1 motor they told me the only way to find out is open it up.

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10 nth digit is the year digit so your ZDM engine number is 2001.
Not so sure about the other number but
The letter Y in your other engine number is for the year 2000. So the first is the newest. probably.

Character 10: Model year code where,


1971 = 1 1981 = B 1991 = M 2001 = 1
1972 = 2 1982 = C 1992 = N 2002 = 2
1973 = 3 1983 = D 1993 = P 2003 = 3
1974 = 4 1984 = E 1994 = R 2004 = 4
1975 = 5 1985 = F 1995 = S 2005 = 5
1976 = 6 1986 = G 1996 = T 2006 = 6
1977 = 7 1987 = H 1997 = V 2007 = 7
1978 = 8 1988 = J 1998 = W 2008 = 8
1979 = 9 1989 = K 1999 = X 2009 = 9
1980 = A 1990 = L 2000 = Y 2010 =A
 

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Come in Spinner :)
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Discussion Starter #5
Not so sure about that, the first number(the ZDM one) is from the original engine in my bike delivered to the original owner in the 9th month 2000.

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Old Wizard
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Just to add to the confusion, here's the engine number decoding from the Owners Manual. So it appears that #2 isn't a US Market engine.


Ducati uses different coding for different markets. Generally the engine number encodes engine displacement, number of valves, cooling type, fueling type and build number.

Examples

SB8 R 000001 US 1994 916
SB8 S 000001 US 1995 916

ZDM 888W4 000001 French 888
ZDM 916W4 000001 Euro, Australian 916
ZDM 916W4B 000001 French 916
ZDM 748W4B 000001 Dutch 748R

ZDM = Ducati, 916 = 916cc capacity, W = water-cooled, 4 = 4 Valves

ZDM 904A2C 000001 means 904 = 904cc A = air-cooled, 2 = 2 valve, C = carburated
 

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Starting this one up again since I got a related question.

I can not find it online, but exactly what digits does clarify if the engine is from the US?

A buddy of mine got a 999S engine from 2004 - as he was told. But it can be verified by the engine number. ;)

It is: UB54009823

- does the UB5 means from US
- the "4" = 2004
- the rest = production no?
 

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for i been reading and told you are right

Starting this one up again since I got a related question.

I can not find it online, but exactly what digits does clarify if the engine is from the US?

A buddy of mine got a 999S engine from 2004 - as he was told. But it can be verified by the engine number. ;)

It is: UB54009823

- does the UB5 means from US
- the "4" = 2004
- the rest = production no?
 

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Old Wizard
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I can not find it online, but exactly what digits does clarify if the engine is from the US

does the UB5 means from US?

Not exactly, UB5 is Ducati's code for the 999 engine type. This three-character code is used for bikes built for the US market (perhaps others). Engines built for the Euro market, for example, start ZDM which is the Ducati manufacturer code.

From the Owners Manual ...
 

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Not exactly, UB5 is Ducati's code for the 999 engine type. This three-character code is used for bikes built for the US market (perhaps others). Engines built for the Euro market, for example, start ZDM which is the Ducati manufacturer code.
Make sense, thanks ;)
 

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Have a 2006 MTS 620 Standard with what I was told by the first owner is a 750 replacement motor- UA26022294. I bought a clutch pack that was supposed to fit both motors but discs were 1/4" too large and stack was 16mm short. The inside of my basket is 133mm and height is 53mm. Have not heard back from Oregon dealer on which clutch to order.
Any advice on which clutch pack to order? Thanks.
 

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the mts 620 will have an aptc clutch, which has 14 or so friction plates. the 750 engines ended in 2002 and had a normal style wet clutch and 8 or 9 friction plates. it's either one or the other.
 

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Mine has 11 friction plates. The dealer got back to me and they advised to read the part # on the basket and they will know what to order from that. Just ordered an 11 friction pack from valtermoto. Will let you know if it's correct.
 

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looks like the mts620 manual shows 11 plates for the aptc. it definitely has more than the older normal style wet clutch.
 

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Have a 2006 MTS 620 Standard with what I was told by the first owner is a 750 replacement motor- UA26022294. /---/
This doesn't make sense. A 750 engine would have come from a Monster or an SS. And would be too wide at the swingarm pivot point to fit into the MTS frame, or to fit the swingarm onto. Most people won't do the work just to put a 750 in...

I know because I put an 800 Monster engine into my 620 MTS. We had to machine a little off each side of the swingarm area to make it fit. And the 800 has the APTC clutch.
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yeah, it smelt a bit like sellers bullshit to me too, but you never know. maybe it has 88mm pistons in it?
 

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This doesn't make sense. A 750 engine would have come from a Monster or an SS. And would be too wide at the swingarm pivot point to fit into the MTS frame, or to fit the swingarm onto. Most people won't do the work just to put a 750 in...

I know because I put an 800 Monster engine into my 620 MTS. We had to machine a little off each side of the swingarm area to make it fit. And the 800 has the APTC clutch.
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This doesn't make sense. A 750 engine would have come from a Monster or an SS. And would be too wide at the swingarm pivot point to fit into the MTS frame, or to fit the swingarm onto. Most people won't do the work just to put a 750 in...

I know because I put an 800 Monster engine into my 620 MTS. We had to machine a little off each side of the swingarm area to make it fit. And the 800 has the APTC clutch.
.
A buddy hereabouts had an MTS620 which the dealer put an 800 in after a sidestand was broken out the crankcase. Story on mine is the same I am told.
 

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A buddy hereabouts had an MTS620 which the dealer put an 800 in after a sidestand was broken out the crankcase. Story on mine is the same I am told.
An 800 really wakes the bike up. I saved quite a bit of money by using the Monster engine because it was on sale, and my buddy has a mill in his garage.
Otherwise, I would have ponied up the money for an 800 out of a Hypermotard. No machining necessary.
And the sidestand was loose on mine when I got it! But the kid before me had scattered the transmission.
 
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