paint on engine block

[roverboy]

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

[Nurse Julie]

Crank cases, head, barrels rocker cover and breather all painted, with side casings being polished.
Simoniz SIMVHT31D is the best paint product to use.

[McCabe-Thiele (Ted)]

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

[Sesman]

Post oven.

[roverboy]

thanks for your pics very helpful kind regards john

[TezzerTel]

If I'm reading the instructions correctly the aluminium is only good up to 120°C ? Is this correct and is that hot enough?

[Nurse Julie]

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.