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Author Topic: CB550 piston ring orientation  (Read 759 times)

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Offline nbcam

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CB550 piston ring orientation
« on: September 04, 2021, 10:58:46 AM »
Looking for help on position ring orientation for a cb550, looking at the manual they say keep 120 deg apart and no gap over gudgoen pin. Is this correct ?


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Offline RAFster122s

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Re: CB550 piston ring orientation
« Reply #1 on: September 04, 2021, 11:08:25 AM »
Yes, that is correct, the gaps for each ring should be staggered roughly 120 degrees apart.
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Offline bryanj

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Re: CB550 piston ring orientation
« Reply #2 on: September 04, 2021, 12:26:53 PM »
120 is difficult with a 3 piece scraper ring and never heard the bit about not above pin
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Offline Bodi

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Re: CB550 piston ring orientation
« Reply #3 on: September 04, 2021, 08:46:18 PM »
120 apart with no gaps aligned with the wrist pin. Put the top oil ring at the last 120 and the other two 120 apart.
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Offline PeWe

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Re: CB550 piston ring orientation
« Reply #4 on: September 04, 2021, 10:26:00 PM »
Dynomans pistons have a tech sheet how to install them.
Note the oil rails.
Here big bore for CB5X0

« Last Edit: September 05, 2021, 02:00:29 AM by PeWe »
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967
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