Sealing Crankcases?

ebrammer252 · May 21st, 2014, 05:13 PM

I'm in the process of rebuilding my old ninja 250

http://www.svrider.com/forum/showthread.php?t=261713

The manual calls for "Sealant: Liquid Gasket TB1216B: 92104-1064" which is ridiculously expensive.

Originally I planned to use Permatex ultra black, but some research shows that's not a great idea. I see people swearing by ThreeBond 1194 and ThreeBond 1121. Has anyone here had experience with either of these products? OR any other recommendations for sealing them up?

Racer x · May 21st, 2014, 05:23 PM

I use the gray stuff called Honda bond. But before I put it on I clean the case half a with break clean. And I use a scotch bright to rub them down. As I put the Honda bond on I rub it around some to make sure there are no oily spots. And only leave a thin film of sealant. You don't want any squeezing inside the case. Let it set up for a little while to form a skin. Then put the two halves together.

alex.s · May 21st, 2014, 05:25 PM

which one is the thin one? kawibond or hondabond? hondabond was nice and thick and goopy right?

ebrammer252 · May 21st, 2014, 05:25 PM

Quote:

Originally Posted by Racer x

I use the gray stuff called Honda bond. But before I put it on I clean the case half a with break clean. And I use a scotch bright to rub them down. As I put the Honda bond on I rum it around some to make sure there are no oily spots. And only leave a thin film of sealant. You don't want any squeezing inside the case. Let it set up for a little while to form a skin. Then put the two halves together.

I've already scrapped the mating surfaces with a razor, then cleaned them with brake cleaner. Cleaned them with a tooth brush and dish soap, then cleaned them with a scotch brite pad and cleaned them with dish soap again. Before I seal it I will be wiping down the mating surfaces thoroughly with brake cleaner again. From what I understand the Three Bond 1194 is the same thing as Honda Bond? Apparently Three Bond makes YamaBond, HondaBond, Suzuki Bond etc.

Just to make sure I'm on the right page here. This stuff?

Racer x · May 21st, 2014, 05:56 PM

You got it. Clean clean clean. And yes to the three bond is the stuff. Just don't use to much.

misfitsailor · May 21st, 2014, 11:31 PM

Yamabond is also excellent.

Desmoluci · May 22nd, 2014, 02:53 AM

Quote:

Originally Posted by misfitsailor

Yamabond is also excellent.

Fuel resistant, too.

I never use RTV.

Desmoluci · May 22nd, 2014, 02:58 AM

Quote:

Originally Posted by alex.s

hondabond was nice and thick and goopy right?

Yes.

Edit: I used some today, it's not all that thick and goopy. But it was hot today...

misfitsailor · May 22nd, 2014, 09:52 AM

Here's a tip that is especially good for the clutch-side cover. Put a more permanent gasket sealer on the side of the gasket toward the crankcase, and use an RTV on the side toward the cover. When it is time to change the clutch, the RTV will allow the cover to pop off cleanly and the gasket will not be destroyed. The gasket has basically been glued to the crankcase. To reseal, just rub and peel off the RTV and apply some fresh.
I have used this technique for 35 years, it is great for any cover you may want to remove cleanly later.

corksil · May 22nd, 2014, 11:20 AM

Why has no-one mentioned....

...After applying the sealant, mating the surfaces, and snugging all bolts with minimal pressure -- wait 15 minutes before finally torquing the bolts to spec. This allows the gasket maker material to further set up and slightly harden before being torqued down to spec, ensuring that less of the gasket maker is squeezed out of the crack and lost.

ebrammer252 · May 22nd, 2014, 11:21 AM

Quote:

Originally Posted by corksil

Why has no-one mentioned....

...After applying the sealant, mating the surfaces, and snugging all bolts with minimal pressure -- wait 15 minutes before finally torquing the bolts to spec. This allows the gasket maker material to further set up and slightly harden before being torqued down to spec, ensuring that less of the gasket maker is squeezed out of the crack and lost.

Thanks for that tidbit, I appreciate it.

alex.s · May 22nd, 2014, 12:14 PM

Quote:

Originally Posted by corksil

Why has no-one mentioned....

...After applying the sealant, mating the surfaces, and snugging all bolts with minimal pressure -- wait 15 minutes before finally torquing the bolts to spec. This allows the gasket maker material to further set up and slightly harden before being torqued down to spec, ensuring that less of the gasket maker is squeezed out of the crack and lost.

racer X did mention that. in the first reply.

May 21st, 2014, 05:13 PM	#1
ebrammer252 ninjette.org member Name: Eric Location: VA Join Date: Apr 2009 Motorcycle(s): '01 Ninja 250 Posts: 62	Sealing Crankcases? I'm in the process of rebuilding my old ninja 250 http://www.svrider.com/forum/showthread.php?t=261713 The manual calls for "Sealant: Liquid Gasket TB1216B: 92104-1064" which is ridiculously expensive. Originally I planned to use Permatex ultra black, but some research shows that's not a great idea. I see people swearing by ThreeBond 1194 and ThreeBond 1121. Has anyone here had experience with either of these products? OR any other recommendations for sealing them up?

May 21st, 2014, 05:23 PM	#2
Racer x ninjette.org certified postwhore Name: Eric Location: Iowa City Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot. Blog Entries: 54 MOTM - Sep '18, Feb '16	I use the gray stuff called Honda bond. But before I put it on I clean the case half a with break clean. And I use a scotch bright to rub them down. As I put the Honda bond on I rub it around some to make sure there are no oily spots. And only leave a thin film of sealant. You don't want any squeezing inside the case. Let it set up for a little while to form a skin. Then put the two halves together. __________________________________________________ Top speed 123.369mph. Ohio mile Worlds fastest 250 ninja

May 21st, 2014, 05:25 PM	#3
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	which one is the thin one? kawibond or hondabond? hondabond was nice and thick and goopy right? __________________________________________________

May 21st, 2014, 05:56 PM	#5
Racer x ninjette.org certified postwhore Name: Eric Location: Iowa City Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot. Blog Entries: 54 MOTM - Sep '18, Feb '16	You got it. Clean clean clean. And yes to the three bond is the stuff. Just don't use to much. __________________________________________________ Top speed 123.369mph. Ohio mile Worlds fastest 250 ninja

May 21st, 2014, 11:31 PM	#6
misfitsailor Ninjette Jockey Name: Tim Location: Stockton, Ca Join Date: Oct 2010 Motorcycle(s): Ninja 250R, Harley Davidson Heritage Softail, 2 Honda Monkeys, Polini & GRC mini GP Posts: A lot. Blog Entries: 3	Yamabond is also excellent. __________________________________________________ For what shall it profit a man, if he shall gain the whole world, and lose his own soul?.

May 22nd, 2014, 09:52 AM	#9
misfitsailor Ninjette Jockey Name: Tim Location: Stockton, Ca Join Date: Oct 2010 Motorcycle(s): Ninja 250R, Harley Davidson Heritage Softail, 2 Honda Monkeys, Polini & GRC mini GP Posts: A lot. Blog Entries: 3	Here's a tip that is especially good for the clutch-side cover. Put a more permanent gasket sealer on the side of the gasket toward the crankcase, and use an RTV on the side toward the cover. When it is time to change the clutch, the RTV will allow the cover to pop off cleanly and the gasket will not be destroyed. The gasket has basically been glued to the crankcase. To reseal, just rub and peel off the RTV and apply some fresh. I have used this technique for 35 years, it is great for any cover you may want to remove cleanly later. __________________________________________________ For what shall it profit a man, if he shall gain the whole world, and lose his own soul?.

May 22nd, 2014, 11:20 AM	#10
corksil ninjette.org certified postwhore Name: TC Location: Hawaii Join Date: Sep 2013 Motorcycle(s): A lot. Posts: A lot.	Why has no-one mentioned.... ...After applying the sealant, mating the surfaces, and snugging all bolts with minimal pressure -- wait 15 minutes before finally torquing the bolts to spec. This allows the gasket maker material to further set up and slightly harden before being torqued down to spec, ensuring that less of the gasket maker is squeezed out of the crack and lost. __________________________________________________ Just batshit crazy. All his posts are endless diatribes. Some are actually entertaining but mostly batshit crazy.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Where to get sealing washers for coolant drain bolts?	WhiteRice	2008 - 2012 Ninja 250R Tech Talk	1	November 11th, 2011 05:03 PM
[kropotkin thinks...] - Bridgepoint Close To Sealing Deal For Infront, But MotoGP And	Ninjette Newsbot	Motorcycling News	0	August 22nd, 2011 10:50 AM
[motorcyclistonline] - Lorenzo Focused on Sealing Championship at Sepang	Ninjette Newsbot	Motorcycling News	0	October 7th, 2010 06:00 PM
[roadracingworld.com] - FIM Starts Sealing MotoGP Engines	Ninjette Newsbot	Motorcycling News	0	August 13th, 2009 12:51 PM