Author Topic: 1978 CB550 K3 "running" restoration  (Read 11886 times)

Offline SPR

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Re: 1978 CB550 K3 "running" restoration
« Reply #30 on: April 10, 2020, 12:42:58 PM »
Small things :)

Stand and side stand cost £20 in total for blast and powder coat in semi gloss






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Offline SteveD CB500K0

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Re: 1978 CB550 K3 "running" restoration
« Reply #31 on: April 10, 2020, 12:43:58 PM »
I’ll bet you were careful putting that spring on!


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Offline SPR

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Re: 1978 CB550 K3 "running" restoration
« Reply #32 on: April 10, 2020, 12:48:21 PM »
I’ll bet you were careful putting that spring on!


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I learnt from the main stand - stretched the spring with pennies before I took it off so a piece of cake :)




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Offline SPR

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Re: 1978 CB550 K3 "running" restoration
« Reply #33 on: April 10, 2020, 03:52:53 PM »
So it would seem I’ve a leaking head gasket ....

1 Would this be a reason for the poor running at higher revs or is that me grasping !!

2 More importantly is head gasket renewal within the realms of novice ??

EDIT after researching .... No to both :(

Thanks

Simon




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« Last Edit: April 10, 2020, 04:25:58 PM by SPR »

Offline SPR

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Re: 1978 CB550 K3 "running" restoration
« Reply #34 on: April 11, 2020, 10:14:43 AM »
So looking in to the head gasket requirements ...

This higher priced kit from David Silvers ....... any thoughts

https://www.davidsilverspares.co.uk/CB550K-1978-USA/part_356535/

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Do I also need the 6 x 91318-300-013 hat bits ?

https://www.davidsilverspares.co.uk/parts/by-part-number/partnumber_91318300013/

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Any other seals that are needed ?

Thanks

Simon

Offline Nurse Julie

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Re: 1978 CB550 K3 "running" restoration
« Reply #35 on: April 11, 2020, 10:32:22 AM »
Yes Simon, you need the hat bits (pucks or Pontefract cakes as they are know as.)

LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

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http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline SPR

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Re: 1978 CB550 K3 "running" restoration
« Reply #36 on: April 11, 2020, 10:33:56 AM »
Yes Simon, you need the hat bits (pucks or Pontefract cakes as they are know as.)

Thanks - I'll get both ordered

What is the best sealant to use for the hat bits ?

Then just need to find someone local :)

Thanks

Simon

Offline Nurse Julie

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Re: 1978 CB550 K3 "running" restoration
« Reply #37 on: April 11, 2020, 10:44:32 AM »
Yes Simon, you need the hat bits (pucks or Pontefract cakes as they are know as.)

Thanks - I'll get both ordered

What is the best sealant to use for the hat bits ?

Then just need to find someone local :)

Thanks

Simon
A light smear of Honda Bond on the pucks. Daunting I know but, why don't you do the work yourself?. Its a way of learning and there are all the resources you need on the forum in the way of advice and encouragement 
LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline SPR

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Re: 1978 CB550 K3 "running" restoration
« Reply #38 on: April 11, 2020, 10:49:07 AM »

A light smear of Honda Bond on the pucks. Daunting I know but, why don't you do the work yourself?. Its a way of learning and there are all the resources you need on the forum in the way of advice and encouragement

Thanks ... I'll mull over having a bash but don't want to make things worse !!

Offline Bryanj

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Re: 1978 CB550 K3 "running" restoration
« Reply #39 on: April 11, 2020, 12:08:12 PM »
All you need to do the job is a 3/8 drive socket set with 6 sided sockets and the manual downloadable from Alladins cave. Its the 500 manual with supplements for the differences on 550, for what you are doing no differences

Offline SPR

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Re: 1978 CB550 K3 "running" restoration
« Reply #40 on: April 11, 2020, 12:27:33 PM »
All you need to do the job is a 3/8 drive socket set with 6 sided sockets and the manual downloadable from Alladins cave. Its the 500 manual with supplements for the differences on 550, for what you are doing no differences

Thanks Bryan

I've been reading the manual ... rather daunting in my case - I'm sure those with knowledge wouldn't bat an eye :)

Cheers

Simon

Offline Bryanj

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Re: 1978 CB550 K3 "running" restoration
« Reply #41 on: April 11, 2020, 01:19:26 PM »
The Honda manual is writen assuming you have a good basic knowledge, if unsure ask and i/we will explain it better-----maybe!!

Offline SPR

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Re: 1978 CB550 K3 "running" restoration
« Reply #42 on: April 11, 2020, 01:22:46 PM »
The Honda manual is writen assuming you have a good basic knowledge, if unsure ask and i/we will explain it better-----maybe!!

I've ordered the bits and also picked up 4 genuine Honda carb gasket kits cheap  ... so may start with the carbs first !!

Offline Bryanj

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Re: 1978 CB550 K3 "running" restoration
« Reply #43 on: April 11, 2020, 02:41:49 PM »
First thinhg with carbs is on the mixture scres should be a spring, tiny washer and very tiny O ring that all need to be there but get easily lost. O ring also gets stuck in the "hole" and needs to be removed.

Offline SPR

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Re: 1978 CB550 K3 "running" restoration
« Reply #44 on: April 11, 2020, 03:54:22 PM »
First thinhg with carbs is on the mixture scres should be a spring, tiny washer and very tiny O ring that all need to be there but get easily lost. O ring also gets stuck in the "hole" and needs to be removed.
Thanks Bryan

That is the same as the Harley ... I’ve read that 1 1/4 turns for the mixture ?

Cheers

Simon


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