Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1

TOPIC: Painting cylinder fins

Painting cylinder fins 21 Nov 2018 17:48 #794087

  • kawiwowi
  • kawiwowi's Avatar Topic Author
  • Offline
  • Member
  • Member
  • Posts: 10
  • Thank you received: 3
I am thinking about painting the jugs on my KZ750 B1 black. Can anyone recommend a good rattle can paint for this job? What about prep? What is the best way to clean the fins before spraying? Thanks for any input.

Please Log in or Create an account to join the conversation.

Painting cylinder fins 21 Nov 2018 20:36 #794093

  • 650Dude
  • 650Dude's Avatar
  • Offline
  • User is blocked
  • User is blocked
  • Posts: 566
  • Thank you received: 19

kawiwowi wrote: I am thinking about painting the jugs on my KZ750 B1 black. Can anyone recommend a good rattle can paint for this job? What about prep? What is the best way to clean the fins before spraying? Thanks for any input.


VHT *FLAME PROOF* HIGH TEMP paint, not just High Temp. I rattle canned my Honda (im thinking of doing my Kawa) and it came out great. Use Steel Wool grade 00 or Scotchbrite pad and clean the fins before painting.



My Honda rattle canned engine:

1977 Kawasaki KZ650B
1977 Kawasaki KZ750 Twin
Attachments:
The following user(s) said Thank You: kawiwowi

Please Log in or Create an account to join the conversation.

Last edit: by 650Dude.

Painting cylinder fins 21 Nov 2018 21:44 #794095

  • Nessism
  • Nessism's Avatar
  • Away
  • Sustaining Member
  • Sustaining Member
  • Posts: 4032
  • Thank you received: 973
PJ1 has a good reputation. I used VHT engine paint on my KZ750 engine and wouldn't use it again. It's brittle and not very fuel resistant.
The following user(s) said Thank You: kawiwowi

Please Log in or Create an account to join the conversation.

Painting cylinder fins 21 Nov 2018 23:29 #794096

  • Warren3200gt
  • Warren3200gt's Avatar
  • Offline
  • Member
  • Member
  • Posts: 323
  • Thank you received: 83

Nessism wrote: PJ1 has a good reputation. I used VHT engine paint on my KZ750 engine and wouldn't use it again. It's brittle and not very fuel resistant.

Interesting, it was widely used in the uk but the the formulation changed here due to enviromental reasons. Its not what it used to be and is no longer the paint of choice. Everyone uses simomez tough paint satin black now. Needs very little prep and can go straight onto bare metal. Once cured it is fuel proof but that takes a month or two to fully cure.
75 z1b, 77 z650 b1, 77 z650 b1 period custom, 77 z1000 a1, 82 z1100 elr, 89 zxr750h1
The following user(s) said Thank You: kawiwowi, linuxrob

Please Log in or Create an account to join the conversation.

Painting cylinder fins 22 Nov 2018 04:20 #794100

  • zed1015
  • zed1015's Avatar
  • Offline
  • Member
  • Member
  • Posts: 1495
  • Thank you received: 498
Simoniz or Sperex tough satin black (Exactly the same paint with slightly different lables) works well or Wurth satin black and behaves just like the old PJ1 before they mucked up the formula.
Once it's been through a heat cycle it becomes oil and fuel resistant.
I have engines in regular use that are still looking good 10 years after they were painted.
Preparation is the key though and you need a clean oil free etched surface ( media blasted etc ) as a base for the best long lasting results.
The following user(s) said Thank You: kawiwowi, linuxrob

Please Log in or Create an account to join the conversation.

Painting cylinder fins 22 Nov 2018 08:41 #794108

  • 650Dude
  • 650Dude's Avatar
  • Offline
  • User is blocked
  • User is blocked
  • Posts: 566
  • Thank you received: 19

Nessism wrote: PJ1 has a good reputation. I used VHT engine paint on my KZ750 engine and wouldn't use it again. It's brittle and not very fuel resistant.


My 900F gets hot as hell. No issues with the VHT at all. Never had fuel spill on my block by the fins...maybe Im an odd duck, but the Flame Proof VHT is holding up rather well.
1977 Kawasaki KZ650B
1977 Kawasaki KZ750 Twin
The following user(s) said Thank You: kawiwowi

Please Log in or Create an account to join the conversation.

Painting cylinder fins 22 Nov 2018 12:34 #794114

  • DoctoRot
  • DoctoRot's Avatar
  • Offline
  • Member
  • Member
  • Oh, the usual... I bowl, I drive around...
  • Posts: 1817
  • Thank you received: 289
if you cant do a media etch because the engine is assembled I have had good results using chemical metal etch to prep the surface for paint.

www.por15.com/POR-15-Metal-Prep
-Vic
_________________________________
'78 kz1000 LTD long term project

'80 kz750G project
The following user(s) said Thank You: bluezbike

Please Log in or Create an account to join the conversation.

Painting cylinder fins 22 Nov 2018 14:01 #794119

  • SWest
  • SWest's Avatar
  • Offline
  • Moderator
  • Moderator
  • Posts: 18174
  • Thank you received: 1598
Black paint holds heat. Hot water heater tanks are painted black then covered with insulation and the outer case.
Steve
Z1b1000 1975 Z1b
Opinions expressed by me do not reflect those of the the staff or members
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229
The following user(s) said Thank You: Barry1, genxrider

Please Log in or Create an account to join the conversation.

Painting cylinder fins 23 Nov 2018 10:03 #794142

  • kawiwowi
  • kawiwowi's Avatar Topic Author
  • Offline
  • Member
  • Member
  • Posts: 10
  • Thank you received: 3
Steve that was one of my concerns regarding painting it black. But I've seen quite a few air cooled bikes with black engines and they seem to be ok.

Please Log in or Create an account to join the conversation.

Painting cylinder fins 23 Nov 2018 11:28 #794145

  • Warren3200gt
  • Warren3200gt's Avatar
  • Offline
  • Member
  • Member
  • Posts: 323
  • Thank you received: 83
Simonez tough paint satin black. Khi painted many engine black for many models.
75 z1b, 77 z650 b1, 77 z650 b1 period custom, 77 z1000 a1, 82 z1100 elr, 89 zxr750h1
Attachments:

Please Log in or Create an account to join the conversation.

Last edit: by Warren3200gt.

Painting cylinder fins 23 Nov 2018 12:12 #794146

  • SWest
  • SWest's Avatar
  • Offline
  • Moderator
  • Moderator
  • Posts: 18174
  • Thank you received: 1598

kawiwowi wrote: Steve that was one of my concerns regarding painting it black. But I've seen quite a few air cooled bikes with black engines and they seem to be ok.


I always had the barrels bare aluminum but the ones I have now were painted. Doesn't matter much now I have a oil cooler.
Steve
Z1b1000 1975 Z1b
Opinions expressed by me do not reflect those of the the staff or members
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

Please Log in or Create an account to join the conversation.

  • Page:
  • 1
Powered by Kunena Forum