View Full Version : To wonder of MYCOM compressor
avico
23-10-2009, 03:08 PM
Dear All pros,
I have a question about MYCOM compressor
I'm wordering how difference between A and WA model, also B and WB model
For example: the differences between N4A and N4WA
Thanks for answer!
RANGER1
23-10-2009, 08:33 PM
There are about 4 things different .
Water jackets on heads .
A+B are cast into head with diamond shape which are harder to clean .
WA+B have flatter type plate bolted on head which are very easy to clean ( no crevices or hard to get at bits ).
Heads and head spring are different and not interchangable .
Suction and discharge valve springs are heavier ( performance improvement ) .
Valve plates are different to accomodate different valve springs and quantity of springs .
Shaft seal is different with rotating steel face being split in middle and spring loaded against thrust bearing ( mycom call it double seal ) .
Sump casting in A+B has cast webbing in sump while WA+B is smooth dish like and very easy to clean .
Piston ring cofigeration changed around this time but you can use in both to keep it simple .
Ithink thats about it .
I have catologue of those if you want i could scan it and mail it to you.
post your mail to me .Gholbehan@yahoo.com (.Gholbehan@yahoo.com)
avico
25-10-2009, 05:00 AM
There are about 4 things different .
Water jackets on heads .
A+B are cast into head with diamond shape which are harder to clean .
WA+B have flatter type plate bolted on head which are very easy to clean ( no crevices or hard to get at bits ).
Heads and head spring are different and not interchangable .
Suction and discharge valve springs are heavier ( performance improvement ) .
Valve plates are different to accomodate different valve springs and quantity of springs .
Shaft seal is different with rotating steel face being split in middle and spring loaded against thrust bearing ( mycom call it double seal ) .
Sump casting in A+B has cast webbing in sump while WA+B is smooth dish like and very easy to clean .
Piston ring cofigeration changed around this time but you can use in both to keep it simple .
Ithink thats about it .
Thanks for comment
I have catologue of those if you want i could scan it and mail it to you.
post your mail to me .Gholbehan@yahoo.com (.Gholbehan@yahoo.com)
My email: info@avico.com.vn
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