Topic: no wonder it seized up!

[Sam Green Racing]

So that's it Jerry, the long and short version

Sam.

[Terry in Australia]

Perhaps the numbers we have over here don't equate to the numbers you have.

Sam

I think Arthur Daly might have been at your bike at one stage Sam, ha ha!

[Sam Green Racing]

You've been watching to much telly Telly to much time on your hands

Hurry up and get your endurance racer sorted

Sam.

[Terry in Australia]

Hurry up and get your endurance racer sorted
Sam.

Don't hold your breath mate, the K0 has kinda pushed everything else outta the way, ha ha! Cheers, Terry.

[Sam Green Racing]

 

[mcpuffett]

Well i have done only 211 miles since full engine rebuild and decided it was time to change the oil and filter and see how things look,  i dropped the sump , oil filter housing and emptied the oil tank , there was a little bit of sedement in the oil filter housing but the biggest shock of all was in the sump and the oil pump gauze  , i used hylomar blue when putting the cases back together and used it sparingly i had some squeeze out of the joints on the outside of the motor and it would seem as though the same happened inside as there was quite a bit in the oil pump gauze, the other thing i found in there was 2 pieces of disposable glove  , i was very careful on reassembly to make sure everything was clean etc but obviously these slipped through inspection , i intend running the bike for another 200 miles and changing the oil and filter again and see how things look and if everythings ok i will go to 1,000 miles oil changes, The bike is running excellent to about 60 mph then it feels like it is holding back and coughs and splutters whilst excellarating , i am currently running pods and 125 main jets and 341 pipes , i still need to sync my carbs and check and adjust mixture etc,  it feels good to be getting the bike sorted out and rideable hopefully this summer i will be able to put some miles on it  ,   cheers mick.

[spitfire]

OK so I'm slow reading your post but I'm truly impressed Mick, glad it has worked out OK, what did you do about the bent conrod/crank situation.

Cheers

Den

[mcpuffett]

Hi Den, i kept my original crank and swapped the rods over from my spare crank all seems ok, engine is nice and oil tight upto now , it starts up nice and easy off the button and settles down to a nice idle at about 1100 rpm's, i still have a couple of issues to sort out carbs mainly & when i'm changing up to third i have to gently put downward pressure on the lever before i can change up? i think its a lazy arm in the gear selector outer casing?, and i have a slight whine from a gearbox bearing that i can live with, Hows your F1 coming along & did you get to stafford ? ,  cheers mick.

[spitfire]

Hi Mick,
           Did not get to Stafford far too tempting to spend money ! The F1 is coming on slowly, I've got to make a decision on the wheels soon but it is a lot of money, think I'll go with new chrome rims and stainless spokes and just clean up the hubs, at the moment I'm renewing the front wheel bearings which were a bit clunky.
Just started to put the front end together, I started to strip the forks and put new seals in but when I drained the oil it was like new, I expected it to be all emulsified and grotty, so I have just cleaned up the alloy legs ands will see what happens, I have new seals in stock in case and it's only a 2 minute job to change them, will post a progress report soon with pics.
Your gearchange problem sounds very familiar, can't remember what I did to sort mine out but I think it was a selector, it was a very long time ago I do remember a lot of people having problems and replacing a lot of selector forks and drums in the early 70's, Honda came out with a modified selector drum with a deeper/wider channel can't remember which !

Cheers

Den

[bryanj]

Both check out the "new" bulletins on the board as they is the one on there about the selector drum, Bulletin number #40

[mcpuffett]

Thanks Bryan will do ,    mick.

[spitfire]

Good stuff there Bryan.

Cheers

Den

[nickjtc]

Just seen this thread for the first time. Good job mc, and thanks for all the pics. And thanks to all you friendly and knowledgable sohc forum-types for the help you have given.

I thank my lucky stars (says he looking for something wooden to touch) that to date I have not had to experience the 'joys' of a complete engine rebuild...but I suspect it's something that will happen, just a case of 'when'?

So here's a question. Re: the long discussion about Seafoam on another thread, with all of its magical properties and advantages..... what's the consensus on slinging Seafoam into an engine with questionably clean internals, running it for a bit, and then draining the oil? Then repeating as necessary to flush out all of the s and c that might have accumulated over its lifetime.

[mcpuffett]

Hi Nick , coming from the uk i don't know what seafoam is  , but i have heard about it on the forums , i would think that with these small oil ways you would have to be very careful not to clog them up ( now that i have seen them close up they are very small) i would think a complete strip down though time consuming and daunting would be the way to go  ,  cheers mick.

[nickjtc]

You're right of course, Mick, that the only way to be sure is to do a complete teardown.

But in my complete ignorance of these things I would have to ask........yes there is a concern about the smaller oilways getting clogged up if a 'flush' was done BUT it seems to me that oilway clogging detritus seems to end up in the sump pan, and it has to get there somehow.

Is the stuff that might be dislodged by using Seafoam (or whatever) more likely to be an issue than the horrfic stuff we've seen that collects at the bottom of the engine?

Just for curiosity I'm going to drop the sump on Sophie's motor to see what lurks there

[bryanj]

Back in the dim and distant past when i rebuit 750's regularly( to the extent that as a small corner bike shop we kept cam towers, cam and rockers  "on the shelf"), We ALWAYS insisted that a rebuild had a 500 mile service, at which point we would drop the sump and check the filter screen. Or remove the clutch case on a twin