Author Topic: 78 CB550 - Putting Engine Back Together....Long Overdue  (Read 1352 times)

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Offline rusty_tank

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78 CB550 - Putting Engine Back Together....Long Overdue
« on: September 28, 2019, 03:59:08 PM »
Hello everyone. I'm a longtime member but haven't been on the forum in a long while. Happy to be back :D

I have a 1978 CB550. I have the engine out of the frame. Had some head work done a while back, new valves, seals, had it ported as well. I've had this bike for over a decade, took it apart a few years ago but life just kinda got in the way and the project was put on hold, I know some of you know how that goes. I've been busy the last few years bein a dad and a family man, time to put this thing back together though. Was hoping I could get some guidance when needed as I go.

I have all side covers taken off, old gasket gunk cleaned off. I've replaced the O-rings and gaskets underneath the cylinder, put cam chain guide and tensioner in.

« Last Edit: September 28, 2019, 09:39:10 PM by rusty_tank »

Offline Ichiban 4

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Re: 78 CB550 - Putting Engine Back Together....Long Overdue
« Reply #1 on: September 29, 2019, 04:52:40 AM »
Bump
Al Summers

Present: '77 550K
Past: '73 CB450(twin), '72 CB175, '68 CB350, '58 Ariel Square 4 (1000cc), '58 Matchless Typhoon (650cc single), Whizzer Motorbikes '48 -'55 (Pacemaker & Sportsman)..Vespa, Lambretta scooters..etc.

Offline SF

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Re: 78 CB550 - Putting Engine Back Together....Long Overdue
« Reply #2 on: September 29, 2019, 02:28:59 PM »
Nice and clean....who did your head work?


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92 wr250 sold
98 zx6r sold
04 zx10r
73 cb350 twin
75 cb550f
75 cb550f
72 r5c
rgid springer bobber project

Offline RAFster122s

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Re: 78 CB550 - Putting Engine Back Together....Long Overdue
« Reply #3 on: September 29, 2019, 08:23:06 PM »
Best of luck on the rebuild...nice progress.
Recall you should use the rubber band trick on the valve/cam cover to prevent valve or valve guide damage when reassembling.
David- back in the desert SW!

Offline rusty_tank

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Re: 78 CB550 - Putting Engine Back Together....Long Overdue
« Reply #4 on: October 04, 2019, 01:15:45 PM »
Nice and clean....who did your head work?


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The head work was done by Chris Schumann, owner and operator of Schumann Motor Works in Milwaukie, OR. Link to facebook page

https://www.facebook.com/Schumann-Motor-Works-1549864701915416/?eid=ARBhV4a4ettibv66nM8XbtJedES-nEca6OcHE8-vFpDp932nub4MtwKqOJmwDC95uXfxG_H6EWQStF_9&timeline_context_item_type=intro_card_work&timeline_context_item_source=100000218158350&fref=tag

Really talented machinist and a good guy.

Offline rusty_tank

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Re: 78 CB550 - Putting Engine Back Together....Long Overdue
« Reply #5 on: October 04, 2019, 01:18:05 PM »
Best of luck on the rebuild...nice progress.
Recall you should use the rubber band trick on the valve/cam cover to prevent valve or valve guide damage when reassembling.

I really appreciate the reminder RAF. I need to be told that over and over again!  ;D