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The rebuild saga continues . . . .

2215 Views 24 Replies 4 Participants Last post by  texmawby
Interesting day. These photos may not be in order, but here goes.

1. I found out what the problem was at the track. The F#$%ing screw came out of the oil filter, which was the SAME issue that caused the original seizure issue with Strempher et al. So I have screwed it in in with red locktite; See what it did to the oil cover. Totally screwed it up. It was only the tab on the lockwasher on the oil cup that saved the oil cup from flinging everything everywhere.

the engine received a full wash out with solvent and a few changes of oil.

2. So following JB's advice (HAHA) I decided it was time to put in the SHINY NEW PISTONS. Woo Hoo. Fit like a dream. But I did put them in by installing in the barrels upside down and then putting the pins in the rods with those ultra coll JB supplied connecting rod pin buttons..

3. I went with a stock cam (for once) with standard side covers. I will do with that for a season just to get this fu*&^ing thing runningf!! I am saving the needle bearing covers for that special moment.

4. I also used loctite on the oil pump stud nuts, as they seem to be losing their correct thread.

5. something weird happend. I put the pin on the cam down, the "O" was up on the cam, crank at TDC, and then i put the cam chain on. no problem. finished assembly. Drive chain on, carbs on, fuel on, etc. . But it wouldn't fire. All I got was instant backfire, which I knew was timing was off. So I put the Pertronix 180 degrees off from where I've been running it. Fires up perfectly. Very strange, I haven't figured this one out yet. JB??

So here (I hope ) are the photos of the fucked up oil cover thingy, and the shiny new pistons.

By the way, the bike runs GREAT. Now I just gotta keep checking stuff. Notice the sleeping dog in the photo.

Aaron, make SURE YOU PUT THAT lock ring behind the oil slinger thingy.

This photo also shows, if you look carefeully, where the cam chain made grooves into the head on the forward lower side and the baddy bladdy bladdy [it's getting late}. . . . Jesus *&^

But Larry 888, thanks for the racing on the presums. today. It was a blast. A little known secret. And that Honda 125 was a hoot. You should try it. And you were scraping pegs!!!!

Uh, did i get the pistons in the right direction? Aren't the spark plugs on the other side?

I'm gonna run this fucker at the streets of Laconia and shit. . . .
Edited by - imslow on Jun 04 2005 9:40:27 PM

Edited by - imslow on Jun 04 2005 9:41:17 PM

Edited by - imslow on Jun 04 2005 9:43:01 PM

Edited by - imslow on Jun 04 2005 9:50:24 PM

Edited by - imslow on Jun 04 2005 9:53:45 PM
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There was absolutely no movement in the crank on the right side . . . but on the left side, I did notice a very very slight amount of movement, (up and down, of course) but only when the pistons are at TDC, moving a few degrees past tdc either way the play stopped. There is no lateral movement whatsoever. I do not remember there being any movement at any time, so maybe it's time for a new crank, or maybe time for some of those titanium super duty HVY H888 series case bolts.

I'm looking for a ducati single.

is this the slowest stupid board on the net? I just lost two replies due to timeout errors.

Joe, the crank is 360, both going up and down at the same time.

JB, doesn;t the crank couterweights counteract a lot of the forces acting on the pistons at tdc and bdc?

call me a head case, but I'm gonna run the bike on Sunday for a few laps, take the side cover off and see how things are a going. Then run on Monday for 6 laps and then re-build, if neccessary, during the god damn rest of june, july and august when we are NOT racing because the uscra schedule sux.

but first I'm gonna run the bike at the secret race track we have here in Portland on Saturday and see how it goes.

JB I get your point. Same old thing--now I gotta find a crank. As I have told a few folks, one more time and this bike is going to ebay. It's jinxed. My other bikes don't do this.
I knew you'd spank me. We'll see how it goes. When I originally built it, there was no play . . . as I remember. I won't let it blow up. Promise. I'm going to have some time on Friday to check everything out.

Are you showing up on Monday? I just got off the phone with baker, he's in the throes of rebuilding his 350 SVintage bike this week.
I'll allay your fears a little. I just went out and opened it up, and frankly, there is less than .005 play in this thing. I do not have a good way of measuring it, but it's quite small. I know, I know, it's gonna probably get worse. But it's no where near the slop that the original crank had that I pulled out, which was probably near .020.

Now I am trying to remember whether it was on the same side as the crank that I pulled out that was trashed. If it was on the same side, that would indicate trashed cases to me. Right? as it has destroyed another crank. I guess I'll have to tear it down and measure the cases bolted up with no crank installed?


Edited by - imslow on Jun 07 2005 12:17:29 PM
I'm not arguing with you about it. We all have our levels of Zen-like states that we go to.

I agree with all you have stated. However,

1. The engine ran all last summer. I do not know if it was this way at any time as I did not check. You know the bike ran probably a total of 10 laps at frontierland and probably 25 at Loudon all last year on that crank, which I installed in the beginning of the season with your help.

2. The oil cup was not trashed due to the crank, IMHO. It was trashed due to the fuked philips screw that came out which let things go loose. It's now with a new screw and loctite

3. I am going to run slow at Laconia on Sunday, then check and see how things are for Monday am. If there is any sign of increasing stupidity going on inside the cases, i won't run it. (I still have two other bikes to ride.)

Plus I'll have you to check it out on Monday am!!

Don't worry. You'll still whip the pants off me.

ps. Did Aaron fix his engine? (suitable change of subject here . .)
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ps, I am going to take it to the secret track in Portland on Sat and run it a bit hea tit up and also see how things are when it's hot. And generally I try to run heavy weight oil any way.
arguing was a harsh word. Apologies.

I'd love to try a different track. Just gotta get the ooomph to drive.

This weekend may be all for nought anyway, as my tranny in my van is making noise and goes in the shop tomorrow for diagnosis.
upgrade? You kiddin? haha
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