79F Standard Rescue in progress

[member28833]

This evening I put in a short while more at

taking it apart.
This bike is really not very clean. The chain and rear wheel is long overdue for servicing.
The whole bike is overdue for maintenance.
But, even in the headlight bucket there are no bad surprises . Not one cut wire Whew !

 

[Mailman]

This evening I put in a short while more at View attachment 133184 taking it apart.
This bike is really not very clean. The chain and rear wheel is long overdue for servicing.
The whole bike is overdue for maintenance.
But, even in the headlight bucket there are no bad surprises . Not one cut wire Whew !

You might get off easy on this one eh?

 

[member28833]

You might get off easy on this one eh?

Just might Bob. You sure know how much work it really takes ! You Rock at this Bob Mailman !
There is one scary concern I will address and hope for good advice on tomorrow.
When I drained the engine oil, I realized how much gasoline was mixed in there
I only saw a video of this engine running in mid December.
Remember when I called him back, the bike was dead with a rusted tank and fuel petcock problems. And, he was ready to go into the carbs when I stopped him and drove there.
So.. What is the main concern if fuel was in the oil ? Valve train , Camchain, Crankshaft bearings, Pistons ? IDK..
Hoping to prime it all back up with oil nice and easy.
The oil filter looks about normal for not being changed in a long time. Tomorrow I'll get under it and pull the sump strainer.
Well see !
-RT

 

[Mailman]

I’m not really sure what the major concerns would be with gas in the oil. I would think that thinning the oil would be the risk, but I’ve never run into it. Perhaps more experienced members might weigh in.

 

[5twins]

I don't think it would do much, if any, damage if the bike wasn't run with it. I would plan a few quick oil changes to flush it out real good. You might even want to do one with 10W-40. Just run it a few minutes and get it hot, then dump the oil.

 

[gggGary]

I'll go to; if it wasn't run that way for a long time. I think I had to dump oil/gas 3 times on a bike while fighting a petcock, no harm no foul. They are pretty insistent in letting you know things aren't right with a caseful of gas. WWII era it was SOP to thin the oil with gas for cold starts and let it evaporate out as the motor ran.

 

[member28833]

I would plan a few quick oil changes to flush it out real good.

I'll go to; if it wasn't run that way for a long time. I think I had to dump oil/gas 3 times on a bike while fighting a petcock, no harm no foul. They are pretty insistent in letting you know things aren't right with a caseful of gas. WWII era it was SOP to thin the oil with gas for cold starts and let it evaporate out as the motor ran.

Great ! I'll take these remarks as encouragement and just keep going onward & upward. I just squirted 10wt. In the plug holes and blew air in there with bicycle pump . (intake valves closed) ...off for coffee .
Thank you - RT

 

[member28833]

Little bit of grit and black rubber in the filter. Cam chain guide is my guess. I don't really like the chunks. This filter is old and ugly !
Here are some pic clues as to history.
Been a few years sitting.
The master cylinder actually works. I'll fix it up too.
Tomorrow is a fine day to take more apart. That's progress

 

[5twins]

What you're finding is probably just normal break-in debris from the low mileage engine, and it's there because I'll bet the bike didn't get the frequent oil and filter changes we like to give them (about every 1000 miles).

I'm of the belief that the little bits of black rubber you often find in these side filters isn't from the front cam chain guide but rather from the rubber ring bonded to the #4 starter gear. The gear bangs into engagement against that rubber ring and it starts breaking apart into little bits. If the starter is grinding, the gear is bouncing in and out multiple times, trying to engage, which probably doesn't help matters. Here's a rubber ring that's pretty far gone .....

The front guide usually doesn't chunk apart, it sheds long strips from the edges and/or the whole rubber piece falls off in one big chunk.

 

[member28833]

I'm of the belief that the little bits of black rubber you often find in these side filters isn't from the front cam chain guide but rather from the rubber ring bonded to the #4 starter gear.

Yes ! Now this is great news. I'll go with it

 

[member28833]

Some progress today. I'm past the concern of the engine oil /gas mixture I discovered.
Moving on to the rear of the bike today.
Next post ..

 

[member28833]

Removing the rear wheel and shocks went very well . The swingarm action feels surprisingly Great !
I'm finding fasteners everywhere on this bike very lightly tightened including the rear axle ! Barely tight !
Besides the known rust/corrosion obvious upon purchase , the bike is really impressing me as "fine" .
The rear axle was greased. Brakes clean.
Today I am glad to have saved and sourced components seemingly just for this project.
Sometimes you just feel lucky.
Here's some progress pics ...

 

[member28833]

Sump Strainer removal
Well, I'm under the bike. All 6 bolts holding the sump strainer plate seemed to be "virgins" , very clean shanks & threads.
I don't think this plate has ever been removed. Hence, it is resisting. Stuck a little I'd say.
I'm being very cautious prying around a little to feel any wiggle but none yet.
Any tips ?
Thx , RT

 

[member28833]

Bingo. It let go.

 

[Moabite]

Sump Strainer removal
Well, I'm under the bike. All 6 bolts holding the sump strainer plate seemed to be "virgins" , very clean shanks & threads.
I don't think this plate has ever been removed. Hence, it is resisting. Stuck a little I'd say.
I'm being very cautious prying around a little to feel any wiggle but none yet.
Any tips ?
Thx , RT

Big hammer always works for me

 

[member28833]

Strainer Screen is not even torn a little .
I can't decide whether to go buy a lottery ticket or wash my weenie now.
I did find these two pieces of hard rubber I think and surely these are chunks of a cam chain guide ?

 

[member28833]

Dang, I lied. Upon closer and cleaner inspection of the screen. It is noted the seam along an edge has let go for over an inch.. well , jb weld is my friend

 

[5twins]

Yes, long strips like that are from the front guide, the lip running down each side. The guide could still be intact. That lip on each side is the 1st thing to come off usually. I'd run it as is for now, for a little while anyway. Do frequent oil changes and watch for metal flakes in the old oil. That would indicate the rubber has completely fallen off the front guide base. You know you'll have to replace it eventually but maybe not right away. I ran mine 2 seasons before tearing into it.

 

[member28833]

Gotcha, thanks

 

[Mailman]

Looking more and more like you got yourself a nice rider. All ahead full!