Author Topic: Cleaning bores after fitting new piston rings  (Read 410 times)

watty51

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Cleaning bores after fitting new piston rings
« on: March 02, 2021, 07:10:48 PM »
Gents and Julie of course.
As the title goes just fitted new piston rings, using plenty of oil to lubricate, following Julies rebuild thread. All went very smoothly but Before the cylinder head goes on should all the lubrication be cleaned off the bore walls.
Thanks
Mark

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: Cleaning bores after fitting new piston rings
« Reply #1 on: March 02, 2021, 07:16:19 PM »
No, leave it on Mark and don't skimp. It looking great 👍👍👍👍
Here's mine, it looks like a chip fryer 😁😁😁 I also used Graphogen as it had had a rebore.

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« Last Edit: March 02, 2021, 07:23:25 PM by Nurse Julie »
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

watty51

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Re: Cleaning bores after fitting new piston rings
« Reply #2 on: March 02, 2021, 07:38:22 PM »
Thanks for the swift reply Julie.
Yeah that photo made me ask the question
I presume after time that oil will wear off.

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: Cleaning bores after fitting new piston rings
« Reply #3 on: March 02, 2021, 07:44:45 PM »
Thanks for the swift reply Julie.
Yeah that photo made me ask the question
I presume after time that oil will wear off.
Yes, the oil wears off very quickly. When you put the head on, make sure the pistons are not at the top of the barrels, as the oil on top of the pistons could seep under the head gasket until you get it all torqued down.
« Last Edit: March 02, 2021, 07:46:42 PM by Nurse Julie »
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

watty51

  • Guest
Re: Cleaning bores after fitting new piston rings
« Reply #4 on: March 02, 2021, 07:49:54 PM »
Will do, thanks for the advice.

 

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