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› Amount of silicone sealant in the valve head cover
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Amount of silicone sealant in the valve head cover (Read 162 times)
RocketScienceSmurf
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Re: Amount of silicone sealant in the valve head c
Reply #15 -
07/21/20 at 12:35:52
And the O-ring had stopped any silicone from leaking inwards
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Dave
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Re: Amount of silicone sealant in the valve head c
Reply #16 -
07/21/20 at 13:12:36
That orange crap is the most awful looking product you could use for this job. It "screams" I have been inside this engine and put it back together using the most obnoxious product I could find.
And as DragBikeMike stated in post #8.....you put sealer on the sides of the little oil reservoir along the cam....it should not be there. Look at the head cover, and if there is not a matching surface on the top for the sealer to squeeze between - don't put sealer there.
For silver colored engines it look far more professional if you use a gray sealer......like Yamabond. For black engines use a black sealer like Suzukibond - both of which are actually made for sealing motorcycle engines.
https://www.amazon.com/Yamalube-Yamabond-4-3-oz/dp/B00545V1ZE
https://www.partsfish.com/product/20518/suzuki-bond-1207b-part-99104-31140
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norm92de
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Re: Amount of silicone sealant in the valve head c
Reply #17 -
07/21/20 at 13:30:06
I have a question. Does everybody put sealer around the plug a the end of the camshaft? I would be inclined to leave it dry.
By the way, in the distant past I used Yamabond with great success. Love that stuff.
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2014 S40. Raptor. idle mixture adj.Needle raised one notch. 4000' altitude. Stock jets. Shell Rotella synthetic.
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Dave
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Re: Amount of silicone sealant in the valve head c
Reply #18 -
07/21/20 at 13:31:23
norm92de wrote
on 07/21/20 at 13:30:06:
I have a question. Does everybody put sealer around the plug a the end of the camshaft? I would be inclined to leave it dry.
I put a very small amount - just a tiny thin smear.
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Ruttly
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Re: Amount of silicone sealant in the valve head c
Reply #19 -
07/21/20 at 13:35:09
If the plug is new I’ll install it dry , if it’s used it gets a small amount 3bond
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norm92de
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Re: Amount of silicone sealant in the valve head c
Reply #20 -
07/21/20 at 13:37:30
Thanks, Gentlemen.
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2014 S40. Raptor. idle mixture adj.Needle raised one notch. 4000' altitude. Stock jets. Shell Rotella synthetic.
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Ruttly
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Re: Amount of silicone sealant in the valve head c
Reply #21 -
07/21/20 at 14:34:00
3bond is same as Yamabond ! What I’ve been using for the last 45 years with great success. I really like it and it’s grey , doesn’t look like you used anything in the tool box. Not pickin on anyone , I’m just used to doin it that way for years. I’m totally in my element when I’m building Thumpers , big or small. I find it very rewarding riding what I build !
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RocketScienceSmurf
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Re: Amount of silicone sealant in the valve head c
Reply #22 -
07/21/20 at 21:27:42
Dave wrote
on 07/21/20 at 13:12:36:
That orange crap is the most awful looking product you could use for this job. It "screams" I have been inside this engine and put it back together using the most obnoxious product I could find.
And as DragBikeMike stated in post #8.....you put sealer on the sides of the little oil reservoir along the cam....it should not be there. Look at the head cover, and if there is not a matching surface on the top for the sealer to squeeze between - don't put sealer there.
For silver colored engines it look far more professional if you use a gray sealer......like Yamabond. For black engines use a black sealer like Suzukibond - both of which are actually made for sealing motorcycle engines.
https://www.amazon.com/Yamalube-Yamabond-4-3-oz/dp/B00545V1ZE
https://www.partsfish.com/product/20518/suzuki-bond-1207b-part-99104-31140
Is Yamabond a discontinued product? The amazon-page says: "Currently unavailable.
We don't know when or if this item will be back in stock" and I am not sure it is possible to get it in Sweden.
I use what I can source here so red silicone motor gasket is in my opinion better than none at all.
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Re: Amount of silicone sealant in the valve head c
Reply #23 -
07/21/20 at 22:25:24
3M is company name , 3 Bond is the product name. Amazon or Ebay
Think it comes in black too
Another good silicone is ultra grey & ultra black
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RocketScienceSmurf
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Re: Amount of silicone sealant in the valve head c
Reply #24 -
08/01/20 at 11:54:17
Today I fiddled around with a pneumatic dispenser I bought of ebay. I wanted to see if it was usable to dispense gasket silicone and it actually was. I had great fun and learned something in the process
https://www.youtube.com/watch?v=4HDekj9Z4og
I use an arduino to controll a pneumatic valve that pushes the gasket silicone out of the syringe. The first test I just let the arduino to open and close with a set time, but once I got that to work I used a couple of pieces of copper tape so I could manually activate the dispensing system with the tip of my finger
https://www.youtube.com/watch?v=G0F9M3eWXeI
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Re: Amount of silicone sealant in the valve head c
Reply #25 -
08/02/20 at 12:38:59
That is about the coolest thing I ever did see. I had to google "arduino" to figure out what that is. This contraption is way above my pay grade. You're a genius. Looks like you have total control over the sealant application.
Dave uses a syringe. I bet he will love this thing.
Really nice job. Thanks for sharing. The YouTube vids are killer good.
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norm92de
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Re: Amount of silicone sealant in the valve head c
Reply #26 -
08/02/20 at 14:43:34
That sure does look like a marvelous way to apply sealant.
I'd be willing to bet it would be perfect for our head cover. No seeping out and perfectly distributed
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2014 S40. Raptor. idle mixture adj.Needle raised one notch. 4000' altitude. Stock jets. Shell Rotella synthetic.
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RocketScienceSmurf
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Re: Amount of silicone sealant in the valve head c
Reply #27 -
08/03/20 at 00:15:37
Thank you for your kind words
It doesn't have to be as fancy as mine with a microcontroller. Basically all you need is 12V pneumatic valve, some kind of switch and a pneumatic glue dispenser
https://www.ebay.com/itm/5CC-Syringe-SMT-SMD-PCB-Solder-Paste-Adhesive-Glue-L...
I didn't want to wait two months so I bought mine from the UK but there must be US sellers as well. 1 bar of air pressure and a 18 gauge tip seem to work well for my red stuff but you may want to try different sizes of tips.
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Dave
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Re: Amount of silicone sealant in the valve head c
Reply #28 -
08/03/20 at 04:21:10
Yep - Cool!
I use plastic syringes with a plunger I have to squeeze manually.
I put down a bead just a bit smaller than a pencil lead. You want enough sealer so that a tiny bit squeezes out both sides and provides even coverage across the mating surface. The sealer that oozes out doesn't do any actual sealing - it is more of a telltale that you have used an adequate amount of sealant.
I found that the sealant doesn't stick to the smooth plastic of the syringe - so after about a week you pull on the plunger and the PVC pops right out of the syringe!
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RocketScienceSmurf
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Re: Amount of silicone sealant in the valve head c
Reply #29 -
08/05/20 at 06:08:06
Put the valve head back today after applying new gasket silicone. The syringe dispenser worked as I expected and now I just hope I haven't obstructed any intended oil flow anywhere.
https://www.youtube.com/watch?v=l9P4FqHVWJM
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