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Head removed - wet areas in zylinder 3 & 4

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Head removed - wet areas in zylinder 3 & 4
Bob Culver Offline
dogged member, NZ
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Joined: Aug 2017 Posts: 2,748 Threads: 31
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Location: Auckland, NZ
#12
21-12-2020, 08:03 PM
The more oil burned the more rapidly oil blackens. Nevertheless that degree of blackness and tar is more characteristic of pre detergent oils. Are the oil rings totally plugged?
The top land has been rubbing but very common, esp as split skirt pisons soon devlop clearance. Can get a vague idea of taper from change of ring gap; nearer 1/2 then 1/3. When were angle cut rings last marketed?
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RE: Head removed - wet areas in zylinder 3 & 4 - by Bob Culver - 21-12-2020, 08:03 PM

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