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Registered
Members: 673 | Total Threads: 50,933 | Total Posts: 519,360 Currently Active Users: 697 (0 active members) Please welcome our newest member, Mozzer46 |
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20-05-2020, 10:02 PM | #31 |
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Join Date: Jul 2003
Location: East London
Bike: Multiple Monsters
Posts: 9,733
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21-05-2020, 03:01 PM | #32 |
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Join Date: Jul 2003
Location: East London
Bike: Multiple Monsters
Posts: 9,733
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08-08-2021, 01:26 PM | #33 |
Registered User
Join Date: Jul 2021
Location: Canterbury
Bike: S4
Posts: 75
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1mm closing clearance
I have got my vertical head off at the mo so checking the clearances, all but one are close but one exhaust closer is 40 thou, serious amount of movement, I now need to pull the rockers and cams but I can't see anything wrong so far it must have been badly calculated and not checked or is there another possible reason for this.. Thanks. .
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08-08-2021, 01:41 PM | #34 |
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Join Date: Jul 2003
Location: East London
Bike: Multiple Monsters
Posts: 9,733
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collets not properly seated or replaced upside down?
is the valve stem stable in the guide? is the valve sitting right in the seat (stem straight and seat cut/lapped properly)? |
08-08-2021, 02:27 PM | #35 |
Registered User
Join Date: Jul 2021
Location: Canterbury
Bike: S4
Posts: 75
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The love seat is good, I thinking the collet may be the issue, iv got the open rockers and cams out just on the closers now, trickier with the springs...
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08-08-2021, 03:22 PM | #36 |
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Join Date: Jul 2003
Location: East London
Bike: Multiple Monsters
Posts: 9,733
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I generally use a small aluminium drift and a toffee hammer and tap the valve stem to ensure everything’s fully seated after refitting the collets. Look for the polished edges to ensure the collets are the same way up as the where before removal. I also always turn the engine 720deg by hand and recheck everything when i’m done.
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08-08-2021, 09:20 PM | #37 |
Registered User
Join Date: Jul 2021
Location: Canterbury
Bike: S4
Posts: 75
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Thanks, I'll follow that and make sure there well seated, that's if I ever get it back together, I have some pitted rockers to deal with now, vertical cylinder, intake right hand opener, exhaust left hand both, I am going to post an ad on here as I really can't do new prices at this time, have already spent quite heavy. Any help on cross compatability with models would be appreciated, I believe st4, s4r are the same but there are likely others??
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09-08-2021, 08:26 AM | #38 | |
Registered User
Join Date: Sep 2010
Location: Leics
Bike: M900
Posts: 2,894
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Quote:
As it happens, I have some spare rockers if you're interested.
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M900, 916, LeMans II. |
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09-08-2021, 12:47 PM | #39 |
Registered User
Join Date: Jul 2021
Location: Canterbury
Bike: S4
Posts: 75
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Thanks, and that would be awesome, I need 2 x left hand openers and 1 x left hand closer..would you like to pm m with the price..
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