SOHC.co.uk Forums > CB750
CB750K2 - Identifying Parts
Nurse Julie:
--- Quote from: Biggles07 on March 15, 2022, 12:48:45 PM ---Thank you Julie.
Supplemental re Cloud Silver for engine cases: what sort of paint should one use (I'm thinking that a VHT paint might be best?), and are there any tips on sourcing it and the best method of applying it?
Again many thanks in anticipation.
Cheers Simon
--- End quote ---
Simoniz SIMVHT31D is the best we have ever found both for colour match and finish on all of our own and customers engines. As with anything though, a good outcome is all down to the prep. The engine has to be fully stripped and prepared as the VHT needs air curing and oven curing.
It's available from ebay. You will need about 2 cans to do a full engine. Read instructions carefully and do exactly as it says in the instructions.
Biggles07:
--- Quote from: Nurse Julie on March 15, 2022, 02:11:05 PM ---
--- Quote from: Biggles07 on March 15, 2022, 12:48:45 PM ---Thank you again Julie.
Great advice. I have a complete S/H engine that'll be the basis of a full rebuild this spring. It'll get the 'Simonize' treatment! I'll post my results once its in progress.
Cheers Simon
--- End quote ---
Simoniz SIMVHT31D is the best we have ever found both for colour match and finish on all of our own and customers engines. As with anything though, a good outcome is all down to the prep. The engine has to be fully stripped and prepared as the VHT needs air curing and oven curing.
It's available from ebay. You will need about 2 cans to do a full engine. Read instructions carefully and do exactly as it says in the instructions.
--- End quote ---
PHILIP2908:
Re painting engine with VHT paint
Don’t make the mistake I did. I had the engine out of the frame to replace the head gasket and thought I’d spray the crankcases and upper part of the engine with a VHT silver paint. I though the heat from the engine would be enough to cure the paint. WRONG !!
It works OK on the barrels and the cylinder head which get nice and toasty but not hot enough on the crankcases. Consequently, any drop of petrol from the carbs results in the paint falling off. Looks a bit messy now.
The only way is to spray them and then cure in the oven.
When I restored a CB750 K2 back in 1990 or thereabouts, I sprayed the crankcases in Ford Cortina Silver Mist and it looked good, had a bit of shine and most importantly stayed on. Wish I'd done that this time round.
Biggles07:
I will be able to paint it while completely disassembled….the only ‘wrinkle in the paint’ will be Mrs F’s attitude to the use of her oven…… :-\
Martin6:
Interesting comments on VHT engine paint. The case of my K6 was previously resprayed with VHT, then leaking carburettors removed plenty of the paint. Not enough temperature to cure the paint.
Once I've got the old girl reliable (🤞), I'd like to do something about that, without removing the engine. I've previously had very good results by using cut up pieces of sponge to apply paint, avoiding overspray.
Can anyone recommend a suitable paint for the engine case?
- It must get pretty hot in places, especially behind the exhausts, but not enough to cure VHT paints.
- is it matt silver?
Thanks.
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