SuzukiSavage.com - Amount of silicone sealant in the valve head cover

RocketScienceSmurf Senior Member Offline SuzukiSavage.com Rocks! Posts: 268 Sweden Gender:	Amount of silicone sealant in the valve head cover 07/20/20 at 11:52:16 How much sealant is too much and what should one do if there was too much applied?
Back to top	goo_1.png IP Logged

RocketScienceSmurf Senior Member Offline SuzukiSavage.com Rocks! Posts: 268 Sweden Gender:	Re: Amount of silicone sealant in the valve head c Reply #1 - 07/20/20 at 11:52:34 pic 2
Back to top	goo_2.png IP Logged

RocketScienceSmurf Senior Member Offline SuzukiSavage.com Rocks! Posts: 268 Sweden Gender:	Re: Amount of silicone sealant in the valve head c Reply #2 - 07/20/20 at 11:52:49 pic 3
Back to top	goo_3.png IP Logged

RocketScienceSmurf Senior Member Offline SuzukiSavage.com Rocks! Posts: 268 Sweden Gender:	Re: Amount of silicone sealant in the valve head c Reply #3 - 07/20/20 at 11:53:03 pic 4
Back to top	goo_4.png IP Logged

RocketScienceSmurf

Senior Member

Offline

SuzukiSavage.com
Rocks!

Posts: 268
Sweden
Gender: male

Re: Amount of silicone sealant in the valve head c
Reply #4 - 07/20/20 at 11:57:50

The instruction said to apply it, tighten the part with fingers, wait for an hour and the torque to spec. When I torqued all the bolts, the excess was pushed out between the cylinder head and the valve plate. I let it cure for two days before I turned the the crank shaft to control that the valves and everything worked OK so there is no silicone sealant smeared inside the engine before it cured but perhaps some of this may come loose when running the engine. Will if just end up inside the oil filter or do I have to remove the valve head and redo the whole thing?

Back to top

goo_5.png

IP Logged

verslagen1

YaBB Moderator
ModSquad

Offline

Where there's a
will, I want to be
in it.

Posts: 28764
L.A. California
Gender: male

Re: Amount of silicone sealant in the valve head c
Reply #5 - 07/20/20 at 13:51:50

Well, we know you have enough, but is it too much?
There's a figure 8 o-ring (you did put it in?) that keeps the goo out and the oil in.
If the goo get past the o-ring it can reduce/stop the flow of oil to the head.
and there's no place to check pressure other than looking at the bath tub to see if it's full of oil.

Back to top

Versey's Place
Tech Section Index

IP Logged

justin_o_guy2

Serious Thumper

Offline

What happened?

Posts: 55279
East Texas, 1/2 dallas/la.

Re: Amount of silicone sealant in the valve head c
Reply #6 - 07/20/20 at 16:22:24

Yeaaah,, RTV,, Really not the best product for the job..
Yamabond, or the like,, it Never acually cures,, Im so sorry I failed to mention that..

How much we See says
Yeah, you did enough,,
As mentioned
Did you use too much,,?
Who can know?
Unless you remember how you applied it up around the Figure 8 Oring,,

Back to top

The people never give up their liberties but under some delusion.- Edmund Burke.

IP Logged

DragBikeMike

Serious Thumper

Offline

SuzukiSavage.com
Rocks!

Posts: 4193
Honolulu

Re: Amount of silicone sealant in the valve head c
Reply #7 - 07/20/20 at 17:38:32

Kamelrytarn, thats waaaaay too much sealant. I suggest you take it apart and clean all of that sealant out of there. It needs to be reassembled with the proper amount of sealant.

There are chamfers along the edge of the cam bearings that feed oil to the cam lobes and rocker pads. If those chamfers are even partially obstructed with sealant, you run the risk of starving the rockers, cam lobes, and valves of lubricant.

The left hand bearing chamfer feeds oil into the cavity adjacent to the bearing. From that cavity, oil is forced through the hollow camshaft and out through the holes in the cam lobes. If your sealant obstructs that chamfer, no oil will get to the cam.

This is the chamfer on the left hand cam bearing.

Back to top

Intake_Rocker_Oiling_Hole_with_Rocker_Installed_markup2.png

Knowledge is power.

IP Logged

DragBikeMike

Serious Thumper

Offline

SuzukiSavage.com
Rocks!

Posts: 4193
Honolulu

Re: Amount of silicone sealant in the valve head c
Reply #8 - 07/20/20 at 17:55:15

A similar chamfer on the right hand cam bearing feeds oil into the reservoir directly below the cam lobes. The chamfer keeps the reservoir filled. As the cam rotates, the lobes dip into the reservoir and pick up oil.

The chamfer on the right hand bearing is circled in yellow. The right hand bearing and reservoir are circled in red. You don't need any sealant at all in the area circled in red.

Back to top

Ready_to_Go_1_2_oil_trough_markup_23.png

Knowledge is power.

IP Logged

DragBikeMike

Serious Thumper

Offline

SuzukiSavage.com
Rocks!

Posts: 4193
Honolulu

Re: Amount of silicone sealant in the valve head c
Reply #9 - 07/20/20 at 18:06:33

I use a sealant applicator made with a small ball bearing. It's actually a skateboard bearing. You use the applicator like a paint roller. Put sealant on a piece of glass and roll the bearing through the sealant. Then roll the bearing on a clean part of the glass to achieve a thin layer on the bearing. Then apply sealant to your sealing surface as if you were applying paint with a paint roller.

Back to top

Sealant_Applicator_2.JPG

Knowledge is power.

IP Logged

DragBikeMike Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 4193 Honolulu	Re: Amount of silicone sealant in the valve head c Reply #10 - 07/20/20 at 18:08:19 This is a picture of a copper base gasket that I just applied grey sealant on. You can see how thin the layer of sealant is.
Back to top	Gasket_with_Sealant_2.JPG Knowledge is power. IP Logged

DragBikeMike Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 4193 Honolulu	Re: Amount of silicone sealant in the valve head c Reply #11 - 07/20/20 at 18:09:32 This shows how much sealant squeezed out after I assembled the joint.
Back to top	Sealant_Squeeze_out_2.JPG Knowledge is power. IP Logged

RocketScienceSmurf

Senior Member

Offline

SuzukiSavage.com
Rocks!

Posts: 268
Sweden
Gender: male

Re: Amount of silicone sealant in the valve head c
Reply #12 - 07/20/20 at 21:35:36

It was a good thing I checked with you before I put everything together. I tried to take a picture after I applied my sealant but I didn't hold the camera still enough. I tried to apply as thin of a line as possible but it wasn't thin enough.

Also I realized after putting the valve head on that, just as you stated Mike, one should not apply sealant on the area surrounding the cam shaft so I removed some of it in that area.

If the figure-8 O-ring mentioned is the one that will go in the left upper corner then I did put that in and tried to make sure that the sealant was only on the outside of that O-ring.

One other question: I know that engine oils with Moly should NOT be used in the engine, but the Clymer manual suggest one should apply molbybdenum disulfide grease on the cam shaft. Wouldn't that eventually find its way down to the clutch?

I am a big fan of MoS2 grease but I did not put any on the cam shaft. Should I apply some when I redo the sealing?

Back to top

sealant.png

IP Logged

Ruttly Serious Thumper Offline Thumpers Rule Posts: 4997 Manteca , CA Gender:	Re: Amount of silicone sealant in the valve head c Reply #13 - 07/20/20 at 23:07:46 3M 3bond it ain’t cheap but it’s the right stuff and it’s grey , the only other thing I would use is gasket eliminator (looks like grape jelly) and is even more expensive But it won’t leak shrink or crack
Back to top	The Topic Terminator IP Logged

RocketScienceSmurf Senior Member Offline SuzukiSavage.com Rocks! Posts: 268 Sweden Gender:	Re: Amount of silicone sealant in the valve head c Reply #14 - 07/21/20 at 12:34:44 It actually didn't look too bad
Back to top	cylinder_head_sealant.png IP Logged