1975 CB400F Project "Replacement Girlfriend"

[SONICJK]

The little black push button switch on the right side of the top case.

 

[neevo]

The little black push button switch on the right side of the top case.

Is it on all years? Don't remember it on my 400.

 

[SONICJK]

Not a clue haha

Looks like this

 

[neevo]

Ahhhhhhh, on the sprocket side above the oil pump. I think that's the neutral indicator light switch.

Powder coating is looking killer btw!

 

[DesmoBro]

looks awesome...almost has me driving to pick up a free stove on CL....do u use the kitchen stove? or an extra?

 

[SONICJK]

Neevo it may well be the neutral light switch haha I haven't ever run or wired this engine, so I was guessing.

Thanks for the props on the powder guys I appreciate It.

I used my kitchen oven, I know I know it will kill me. But I can count the times in the last year that I have cooked in it on one finger, so I said what the hell. Stunk up the house for a few minutes but opened the doors and all is now well.

 

[SONICJK]

Well I have been insanely busy lately and havent even gotten to touch this thing lately, but I have gathered the necessary parts for the engine reassembly, and I think Ill start on that today, Ill be honest I am a bit intimidated, I didn't anticipate it being so long between tear down and reassembly hopefully it will go smoothly.

 

[pr design]

Looking good the powder coat would have never happened with the girlfriend around.
Just take your time. Go back through your documentation of the tear down, it never hurts to look back at what you have done to refresh your memory of how it goes together.

 

[swan]

Well I have been insanely busy lately and havent even gotten to touch this thing lately, but I have gathered the necessary parts for the engine reassembly, and I think Ill start on that today, Ill be honest I am a bit intimidated, I didn't anticipate it being so long between tear down and reassembly hopefully it will go smoothly.

Nah, it is easy.. just follow the books, take you time, clean and measure everything and replace anything which is out of factory specification. Use plenty of engine assembly lubricant on all moving parts and anti-seize compound on your bolt threads. Use all new seals and gaskets, take notes, right down all your tolerances and take loads of images. Looking great so far.

 

[SONICJK]

Okay so all went well!
Then I flipped the engine over and hear a rattle. And this little BASTARD was sitting there...loose. And worse, I have no idea what is is.....does anyone have a clue?

Please tell me I can access it from the oil pan hole I so don't want to tear it down again.

 

[swan]

That is one of three rollers (part #264 in Honda parts manual, OEM# 91101-333-000) inside your drive socket hub (part #138 in you Honda pars manual, OEM# 23112-333-000). I believe you can flip the motor upside down, remove he bottom half, pull the shaft and rotate or remove the drive socket hub and install your roller. Grease it with engine assembly lube so it stays put. Clean each half of the crankcase edges, apply new sealant and put back together.

 

[SONICJK]

You were right, and I was able to get it back in there WITHOUT splitting the cases again with a lot of patience and perseverance haha

 

[SONICJK]

Got the pistons soda blasted

An installed

And that's where she sits while I eat dinner

 

[SONICJK]

Realized I forgot the damn O-Rings at the base of the Jugs, so i pulled the jugs and installed the O-rings.
WHen i put the jugs back on there was too much resistance so i stopped and pulled them off again, sure enough there was a scratch in the walls and three bent oil rings (WTF) replaced those and bent one more in the process, and FINALLY got the thing back together (after I re-honed the cylinders)
I was so angry that i slammed a hammer into the countertop leaving a nice crack.

I have come to the conclusion that engines are very simple things, but they are a PAIN IN THE ASS to work on. I always seem to screw something up and it is a bear to fix. After 10+ hours today I have my bottom end back together and the jugs on. Not much to show for my work, i was very close to slamming the thing into the ground and ordering a complete engine from ebay haha.
Tomorrow night hopefully ill be able to get the remaining parts painted and get the top end buttoned up, and get the engine in the frame sometime this week.

 

[DesmoBro]

You need a sand bag some hammers and 18gauge....It will save your counters from further destruction....Motor is looking good next time it will be easier for ya

 

[SONICJK]

The never ending rebuild continues...
Got my head assembled.
Its loads of fun trying to figure out where the hell the PO put all this stuff. He was meticulous, just not logical. FOr instance the little retainer clips for the valve springs weren't with the valve springs, they were with the rocker arms. Wtf?

All was going well was preparing to put the head on and button up the top end!
And then I see that dipshit apparently used vice grips to remove the 4 dowel pins between the jugs and the head. GREAT.
one of them is totally crushed (flat) and the other three are beyond repair. Really guy? you couldn't just leave them in there like everyone else?

Order placed with bike bandit. 3-5 days before i can do any more. Ugh

Its a really good thing I bought this thing, as im certain the PO would have destroyed this engine trying to "rebuild" it.

 

[SONICJK]

Some engine porn. This thing is so sexy.

 

[Rich Ard]

Lookin' very nice!

 

[crqcycles]

Some engine porn. This thing is so sexy.

I second the engine porn thing; looks asian to me! Jajajaja

 

[Wangofree]

Beautiful!