I am wondering if anyone can tell me what the letters "HU" stamped into the Heads on my 906 are for, i noticed them the other day when i was fiting new Coils and thought that they may have been stamped by the previous owner but then i was having a look at EBay Paso parts and here is a pair of 907 Heads in the USA and in the picture can be clearly seen the "HU" stamping as well, just curious.
Thanks
Harry
Letters stamped onto Heads
- higgy
- paso grand pooh-bah
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Re: Letters stamped onto Heads
just a stab in the dark, My guess would be it identifies the foundry wherer the heads got cast
Ducati,making mechanics out of riders since 1946
There's no problem so bad that a little fixing can't make it worse! : )
If it ain't broke keep fixin it till it is
88 750
90 906
92 907ie
There's no problem so bad that a little fixing can't make it worse! : )
If it ain't broke keep fixin it till it is
88 750
90 906
92 907ie
- Derek
- paso grand pooh-bah
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- Joined: Thu Nov 03, 2011 10:13 am
- model: 907 I.E.
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Re: Letters stamped onto Heads
There is also a letter 'B' stamped on the top fin of my 907 heads. On the carb Monster 750 models the heads marked 'V2' were the ones to have, those marked 'W' had smaller inlet valves. It may indicate that the heads have the sliding clip to enable the inlet rocker to slide along for access to the shims even though these heads got the gold valve covers.
1994 907ie
2017 Supersport 939
2015 Scrambler Classic
1982 Pantah 500SL (now sold)
Scotland
2017 Supersport 939
2015 Scrambler Classic
1982 Pantah 500SL (now sold)
Scotland
- Derek
- paso grand pooh-bah
- Posts: 768
- Joined: Thu Nov 03, 2011 10:13 am
- model: 907 I.E.
- year: 1994
- Location: Scotland
Re: Letters stamped onto Heads
The ST2 heads are stamped with 'HZ', so perhaps the H indicates water cooled and the U and Z are different versions. Just guessing really.Derek wrote:There is also a letter 'B' stamped on the top fin of my 907 heads. On the carb Monster 750 models the heads marked 'V2' were the ones to have, those marked 'W' had smaller inlet valves. It may indicate that the heads have the sliding clip to enable the inlet rocker to slide along for access to the shims even though these heads got the gold valve covers.
1994 907ie
2017 Supersport 939
2015 Scrambler Classic
1982 Pantah 500SL (now sold)
Scotland
2017 Supersport 939
2015 Scrambler Classic
1982 Pantah 500SL (now sold)
Scotland