Putting the engine back together

[hereismylife]

I finally got the crank bearings replaced and the crank fits the case nicely. I also replaced all the rubber seals. Now I am ready to put the cases together.
I did read/search about using yamabond but no one said about how much to use.

I was wondering if you can use to much? Also what is the recommended # of yamabond? I did read there is #4

 

[tedgoesfast]

a thin layer on mating surfuces and torque to spec

 

[hereismylife]

I was told something like that but I just want to be sure. I wonder what if you put to much on....

 

[SWEDE]

It should just squeeze out if you put in too much, but I'm not sure if thats a big deal or not.

 

[JohnnyQuest]

Just put a thin layer on both halves, it's not like you need to lay a bead of it or anything. A little excess will do no harm

 

[daman]

Just put a thin layer on both halves, it's not like you need to lay a bead of it or anything. A little excess will do no harm

x2^^^

 

[DARV]

i think you better check i think it should be #5 it is silver in color matchs the cases

 

[daman]

Yamabond 5 is what i like using..

 

[woolyviper]

if you use too much it just squeezes out anyway. i think yamabond changed it's numbers or discontinued one or the other just make sure you get the one that is semi drying?

 

[DARV]

itb is # 5 they change the way it is made try to get old batch and put it on both case and put together

 

[Ding]

Put it on, then scrape it off with light pressure on a straight edge. I use a credit card. It is only used to fill the pores and make it air tight. It is not a gasket.

 

[hereismylife]

update...

I got the case together. I used # 4 because there is no # 5 available around here. Anyway I did have extra on the halves and wiped it down and cleaned the extra of the crank. It should never leak.... .

Here are the the case halfs

 

[hereismylife]

All back together

 

[hereismylife]

This is why...

Here is why I had to do this second bearing in

 

[hereismylife]

Now I am ready to do the water pump with a new gasket. I am going to try and clean the engine bay up but there is no drain holes Not sure what I am going to do about that.

 

[hereismylife]

I am ready to put the water pump back on but I need to know the torque spec for the pump bolts. Anyone know? I searched this and found some interesting info. I read there is a weep hole. Now maybe I missed something but it is a sealed unit. I read it has a weep hole and can leak. I am going to look at this again to see if I missed this.

Anyhow I need to know what to torque the water pump housing bolts at?

 

[daman]

9.4 ft lbs.

you did put some(1-2oz) 2 smoke oil in the pump sump?

 

[hereismylife]

9.4 ft lbs.

you did put some(1-2oz) 2 smoke oil in the pump sump?

thanks

You mean in the crank bottom where the lines are at? Not sure what the pump sump is.

I did use assembly oil on the bearings and seals. Before I put the jugs on I am going to put oil in the case in each cyl hole.

 

[daman]

 

[hereismylife]

I put a lot of yamaha grease in there until the oil gets to it. I put it in both bearings.

thanks for the input.

Alot were the cases at the water pump housing I am going to put yamabond there so the seal don't leak.