998 Engine Code

ZDM998W4B-000000 the last 6 being the serial number.

The 999 also used this engine and the 999s had the deep sump variant - same numbers though.
The 996 I think was a 998cc but sand cast cases, the 998R was a 999cc with sand cast cases I think.

 

Aha something to faff about with, excellent

 

Oh, and the 998 was a new Engine, the 916, 996 a further development from the 851 / 888 Engine :smileys:

 

998 was the first with testastretta engine (other than 996R), easily recognised from 916/996 by cylinder heads which are very different appearance. Go for the deep sump version if you can find one as this should be from 998S which had a more powerful motor.

 

The 998's motor apparently had different cam profiles to the stock 998, apparently very similar to a 996R.
Maybe even the same same cams used in the 998R - wikipedia explains this if it's accurate Ducati 998 - Wikipedia, the free encyclopedia

 

Yes, my 998 has S spec cams fitted, they are different

 

How to tell the difference between a 999s and a base 999 motor, both can have deep sump, can't tell from the engine number, sent it to Ducati and they don't know by the number whether its a s or not, I can only measure the valves which are bigger in the S or dyno it when I have it in the bike, unless anyone else knows???

 

999 Base I thought was shallow sump, S is deep sump? Ducati can tell but will only give info usually if you have Frame and Engine Number?

 

I am not sure, because in 06 at the end they made a number of improvements on all of them only way is if I could find some one who has a base definite build in 06, it doesn't make sense to build the S with the deep sump and the base not as it was not a performance issue but a wheeling the bike oil gone missing issue, I know the valves are bigger on the S from what I have sourced, you are right about the frame number, I cant believe they cannot from the engine serial number make out what the engine spec is, whats the point of numbering the the engine if they are all the same, I am a diesel mechanic the break down of the letters and numbers on the engine normally details the build of points to the spec sheet!

 

I don't have a VIN only the engine number, Ducati could tell by the VIN, I bought the motor of ebay a while back without any history.

 

No near it now it now but its for sure a 998 cc deep sump, would make it a 999 engine rather than 998, dont think the 998s had a deep sump motor, could be wrong, I will put the number up tonight so maybe someone would get some idea of of it.

 

988s has a deep sump,

The 998R and non US 998S models had different crankcases with a deep oil sump.

The standard 998 had crankcases which were very similar to the previous Desmoquattro.

The non US 998S as well as the 998R had revised cam profiles which provided more power than the standard 998. The 998R model used a 104.0 mm × 58.8 mm (4.09 in × 2.31 in) mm bore and stroke which actually displaced 999 cc, and was very similar to the engine used in the subsequent 999R model.

In 2001, Ducati introduced the 996R with the 998 cc Testastretta engine. This bike was the true introduction of the Testastretta engine and the 998 model. The engine was similar to the 2002 non US 998S. Only 500 were sold which was all that were needed to homologate the bike to race in the World Superbike Championship. This bike won the World Superbike Championship in 2001 with rider Troy Bayliss. Michael Rutter won the Macau Grand Prix in 2002 and 2003.

The 998 officially ended production in 2004 with the release of the 998s FE ("Final Edition"). This bike was only available by special order, it was not available as a regular production model. They were available in Biposto and Monoposto(one or two seat) versions. It was largely similar to the US model 2002 998S (using the standard 998 engine but with uprated Ohlins suspension components andBrembo four-piston calipers).