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Author Topic: CB550 Top End Rebuild  (Read 18831 times)

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Offline MRieck

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Re: CB550 Top End Rebuild
« Reply #150 on: August 30, 2019, 08:07:45 PM »
 If the exhaust valve hits the piston it will accelerate the valve and literally push the stem up in the retainer and allow the keepers to spit out of the retainer. It is similar to placing a rag in the chamber on a bench and striking the retainer with a socket.....it will easily pop the keepers out.
 As "unluck" would have it it was on #1.....it could have been #4, #2 or #3. The keeper design and retainers in the 550 are plenty good enough unless you really float the valves are have pistons hitting exhaust valves.
« Last Edit: August 30, 2019, 08:23:44 PM by MRieck »
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Owner of the "Million Dollar CB"

Offline jbraun

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Re: CB550 Top End Rebuild
« Reply #151 on: October 08, 2019, 01:07:18 PM »
Hi! Totally new to this forum but have read the whole thread more or less. Really have to say that I suffer with you. Sorry for a bit of OT but could this setup work on my cb500 also? Will follow your advancements through the build!
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Offline 88BuckMeister

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Re: CB550 Top End Rebuild
« Reply #152 on: January 20, 2024, 07:18:07 PM »
Is this 180 off or am I missing something?
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Offline dave500

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Re: CB550 Top End Rebuild
« Reply #153 on: January 20, 2024, 11:04:11 PM »
that cam index mark can be level with the head forward or to the rear,it doesent matter,a cam on 4 strokes cant be 180 out,also be sure you have 1/4 at tdc,rotate that motor 360 and bring the tdc mark back,where is that cam notch now?
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Offline bryanj

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Re: CB550 Top End Rebuild
« Reply #154 on: January 21, 2024, 02:02:22 AM »
As Dave said dont matter a stuff, as long as its on T 1=4 its at either tdc compression or tdc exhaustso cam works both ways, which it is is not determined till after you fitted the cam.

READ THE BOOK ABOUT FITTING CAM COVER
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!
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