Honda-SOHC

Other Stuff => Misc / Open => Topic started by: AshimotoK0 on June 22, 2020, 07:18:17 PM

Title: Hondabond on mating crankcase surfaces
Post by: AshimotoK0 on June 22, 2020, 07:18:17 PM
Anyone  got any comments to add to this USA site post and Hondaman's comments from his book (highlighted by me in red) on the attached image?

http://forums.sohc4.net/index.php?topic=153230.0

[attachimg=1]

Title: Re: Hondabond on mating crankcase surfaces
Post by: Nurse Julie on June 22, 2020, 07:26:11 PM
For what it's worth, Trig doesn't put it in the middle, ever. Trig says it was put on the middle originally because it was put on by a  rolling machine. But, what Hondaman is saying doesn't make sense or read correctly anyway.
Title: Re: Hondabond on mating crankcase surfaces
Post by: AshimotoK0 on June 22, 2020, 07:37:38 PM
For what it's worth, Trig doesn't put it in the middle, ever. Trig says it was put on the middle originally because it was put on by a  rolling machine. But, what Hondaman is saying doesn't make sense or read correctly anyway.

I thought that too Julie but someone came around today who has assembled lots of Honda engines and said the factory applied it in the central areas, so he does too. I gather Kawasaki shop manuals tell you not to apply bonding paste in those central areas on their 4-cyl engines.
Title: Re: Hondabond on mating crankcase surfaces
Post by: Nurse Julie on June 22, 2020, 07:43:50 PM
For what it's worth, Trig doesn't put it in the middle, ever. Trig says it was put on the middle originally because it was put on by a  rolling machine. But, what Hondaman is saying doesn't make sense or read correctly anyway.

I thought that too Julie but someone came around today who has assembled lots of Honda engines and said the factory applied it in the central areas, so he does too. I gather Kawasaki shop manuals tell you not to apply bonding paste in those central areas on their 4-cyl engines.
I have no idea about Kawazaki engines Ash, all I know is Trig never has. Hurry up though, whichever way you decide to go or your Honda Bond will be dry on a warm day like this before you mate the cases 😁😁😁😁
Title: Re: Hondabond on mating crankcase surfaces
Post by: taysidedragon on June 22, 2020, 07:54:50 PM
If you apply the Hondabond in a layer so thin that it's barely visible then I doubt it would
 make any difference  🔧🏍
Title: Re: Hondabond on mating crankcase surfaces
Post by: Laverda Dave on January 20, 2021, 12:41:35 PM
Just to add to this, The kawasaki Z400J I am currently restoring has the sealing compound on every joint face including in the middle of the cases. Considering the engine only has 300-odd miles it has never been apart. The sealing material is like a black silicon and it's been dripped everywhere, under the main bearing shells in a couple of places, on top of the main bearing shells in a number of places, over the roller bearings in the gearbox and its oused out internally around the mating joint on the inside as well. I think I'll take a bit more care when it comes to rebuilding it!
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