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Author Topic: paint on engine block  (Read 4149 times)

Offline roverboy

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paint on engine block
« on: October 30, 2024, 12:51:53 PM »
hi can any body tell me  should the engine block and head be painted or not as i am trying to keep my cb 750 original as i restore it any help would be appreciated
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Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: paint on engine block
« Reply #1 on: October 30, 2024, 01:32:38 PM »
Crank cases, head, barrels rocker cover and breather all painted, with side casings being polished.
Simoniz SIMVHT31D is the best paint product to use.
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LINK TO MY EBAY PAGE. As many of you know already, I give 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 McCabe-Thiele (Ted)

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Re: paint on engine block
« Reply #2 on: October 30, 2024, 03:39:30 PM »
Then follow the baking instructions.

I did the Pyrotechnic Oven cycle clean first - added Brownie points gained - (didn't want to risk any discolouration from cooking spills).

.PXL_20230117_092117239 by Macabe Thiele, on Flickr
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Honda CB400NA Superdream (current money puddle)
Honda CB500 K1 (second money pit)
https://www.sohc.co.uk/index.php/topic,28541.0.html
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html
This is a neat 500 restoration in the USA.
http://forums.sohc4.net/index.php/topic,151576.msg1731556.html#msg1731556

Offline Sesman

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Re: paint on engine block
« Reply #3 on: October 30, 2024, 03:58:14 PM »
Post oven.

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Offline roverboy

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Re: paint on engine block
« Reply #4 on: October 30, 2024, 05:43:03 PM »
thanks for your pics very helpful kind regards john
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Offline TezzerTel

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Re: paint on engine block
« Reply #5 on: October 30, 2024, 05:52:58 PM »
If I'm reading the instructions correctly the aluminium is only good up to 120°C ? Is this correct and is that hot enough?
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Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
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Re: paint on engine block
« Reply #6 on: October 30, 2024, 06:18:02 PM »
Quote from: TezzerTel on October 30, 2024, 05:52:58 PM
If I'm reading the instructions correctly the aluminium is only good up to 120°C ? Is this correct and is that hot enough?
Yes, that's plenty. Even internally the temps when running only reach 150-200°c, the exterior surfaces of the engine reach considerably less.
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LINK TO MY EBAY PAGE. As many of you know already, I give 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
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