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(Moderators:
rocker59
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Luaps Girl
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Ncdan
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850-T3 Ring end gap.
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Topic: 850-T3 Ring end gap. (Read 397 times)
n3303j
Ron Cichowski
Gaggle Hero
Posts: 1806
Location: Eastern Massachusetts
850-T3 Ring end gap.
«
on:
May 09, 2025, 01:16:23 PM »
So it's raining and I'm in my garage looking up ring end gap specs for the T3.
Guzziology sends me to the shop manual.
The shop manual shows:
0.3÷0.45 for top three rings
0.25÷0.40 for the oil ring
WTF???
Google doesn't even know what to make of that notation.
Anyone versed in the old European languages who can translate?
Thanks
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'98 MG V11 EV
'96 URAL SPORTSMAN
'77 MG 850T3 FB
RinkRat II
Gaggle Hero
Posts: 2233
Lake Powell AZ
Re: 850-T3 Ring end gap.
«
Reply #1 on:
May 09, 2025, 01:25:17 PM »
Rule of thumb 3"Bore .012" top ring all others .010"
3.5Bore .014 top All Others .012"
4.0 Bore .016" top all others .014
Hope this helps.
Paul B
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A Miller in the hand is worth two in the fridge.
Antietam Classic Cycle
Gaggle Hero
Posts: 14622
Happily stuck in the past.
Location: Rohrersville, Maryland
Re: 850-T3 Ring end gap.
«
Reply #2 on:
May 09, 2025, 01:41:34 PM »
Quote from: n3303j on May 09, 2025, 01:16:23 PM
0.3÷0.45 for top three rings
0.25÷0.40 for the oil ring
.30 mm = .012", .45 mm = .018" so top three ring end gap .012" - .018"
.25 mm = .010", .40 mm = .016" so oil ring end gap .010" - .016"
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Charlie
guzzisteve
Gaggle Hero
Posts: 12103
"Just Ride It"
Re: 850-T3 Ring end gap.
«
Reply #3 on:
May 09, 2025, 01:44:01 PM »
Yes, but it's Nik so I looked in LM3 supplement 850cc top rings.30-.45 metric oil ring .25-.40 metric
WOW, same as Charlie posted, kit should have had specs when supplied
«
Last Edit: May 09, 2025, 01:46:18 PM by guzzisteve
»
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"Pray through Carlo & your bike shall be healed"
Location: Planet Earth
n3303j
Ron Cichowski
Gaggle Hero
Posts: 1806
Location: Eastern Massachusetts
Re: 850-T3 Ring end gap.
«
Reply #4 on:
May 09, 2025, 01:47:19 PM »
So the confusion on my part was not realizing the draftsman used the division symbol to indicate he was specifying a range between the two numbers. The numbers were straight end gap in millimeters.
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'98 MG V11 EV
'96 URAL SPORTSMAN
'77 MG 850T3 FB
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850-T3 Ring end gap.
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