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Post by 4l04ever on Mar 21, 2020 23:11:47 GMT 1
I have had this LC for many years and the engine needs rebuilding due to clutch bearing wear, so while engine was coming out, I decided to strip bike and build a replacement engine with the tie bar mounts. Also getting the mounts welded onto my frame as it is an early frame.
Fully stripped now. Only pic I have so far was near the start...
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Post by 4l04ever on Mar 21, 2020 23:14:40 GMT 1
Pic  |
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Post by 4l04ever on Mar 21, 2020 23:16:00 GMT 1
Bodywork already done.  |
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Post by 4l04ever on Mar 21, 2020 23:18:06 GMT 1
Frame is getting some bracing done, then getting it powder coated again.
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Post by donkeychomp on Mar 22, 2020 0:10:08 GMT 1
Interesting front end...what's that off? And I like the body work!
Alex
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Post by tony2stroke on Mar 22, 2020 0:46:47 GMT 1
Nice colour!  |
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Post by oldbritguy on Mar 22, 2020 0:55:57 GMT 1
Looking great and love the colour too  Post some pictures of the frame once you have got it welded for the tie bars if you can. My frame has some adapted tie bar mounts welded but I might change them as they are a bit on the heavy side. |
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Post by JonW on Mar 22, 2020 2:01:41 GMT 1
yum, love the colour! Reminds me of the OG KTM Duke, the 97(i think?) version was in Aubergine. Lovely!
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Post by 4l04ever on Mar 22, 2020 2:07:00 GMT 1
Paint colour is Mitsubishi Midnight Blue.
Front end is 31K forks, with TZR125 3PC front wheel. Rear wheel is TZR125 4FL.
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Post by wallcraft on Mar 22, 2020 17:57:15 GMT 1
Check the heads out , won't see many of those, small members club.😉
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Post by 4l04ever on Mar 23, 2020 15:00:20 GMT 1
Check the heads out , won't see many of those, small members club.😉 Less of the small members :-) |
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Post by wallcraft on Mar 23, 2020 22:27:00 GMT 1
Check the heads out , won't see many of those, small members club.😉 Less of the small members :-) Saucy 😜 |
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Post by dusty350 on Mar 23, 2020 22:56:03 GMT 1
Love the colour  Really different. I found a pic online recently regards Lc frame bracing. I will dig it out, as it me be of interest to you. Dusty |
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Post by dusty350 on Mar 23, 2020 22:57:38 GMT 1
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Post by 4l04ever on Mar 24, 2020 22:00:28 GMT 1
Looks like a slight change of plans, as frame and swing arm are up my mates unit awaiting welding...and I cannot go there.
Luckily, I have my number 5 bike project half done, so have ordered a new crank and will build that engine, but will fit the trick top end and radiator off number 7.
Frame already powder coated. Will find the JMC swingarm out and see if it will fit.
Will need to decide if I am fitting the blue/purple kit, or the pink kit.
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Post by 4l04ever on Apr 4, 2020 20:45:30 GMT 1
Been stripping Number 7's engine today. Bore on one side looked mint with honing marks still nice. Other side must have had a small amount of debris as there are a few small grooves, but will leave them for now. Very limited blow by past 1st ring, so the hard run in must have worked :-)
Will add pics soon.
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Post by 4l04ever on Apr 4, 2020 22:13:14 GMT 1
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Post by 4l04ever on Apr 4, 2020 22:15:27 GMT 1
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Post by 4l04ever on Apr 4, 2020 22:19:55 GMT 1
Just noticed on my PC monitor that I can see strange wear on bottom rings...anyone else seen anything like that. It was not evident by eye. Top ring looks to have sealed very well, so hardly any blow-by getting to 2nd ring.
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Post by 4l04ever on Apr 4, 2020 22:21:37 GMT 1
No expander rings fitted, so perhaps that causes this wear pattern? Perhaps you get a better seal/wear pattern if they are fitted? Not done more than a few thousand miles since rebore.
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Post by wallcraft on Apr 4, 2020 23:29:54 GMT 1
Tapped head bolt ?
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Post by 4l04ever on Apr 5, 2020 0:51:04 GMT 1
Yes, I am experimenting using knock sensors to listen for detonation... |
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Post by wallcraft on Apr 5, 2020 9:59:08 GMT 1
All good stuff then👍
How many miles did you do on the top end Rob?
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Post by 4l04ever on Apr 5, 2020 13:27:19 GMT 1
I think around 3,000 miles???
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Post by 4l04ever on Apr 5, 2020 13:29:41 GMT 1
The heads cleaned up just using brake cleaner and kitchen towel. Had been run on the cheap Exol Fully synthetic oil, so appears to be protecting the heads pretty well.
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Post by 3tj6 on Apr 5, 2020 17:26:48 GMT 1
does anybody do a kit like that? |
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Post by 4l04ever on Apr 6, 2020 23:40:37 GMT 1
Finished stripping engine. Found the bearing behind the clutch was well fooked! You can move the middle about +/-0.5mm while the outside is held still. Small bearing on other end of the input shaft also has a little play.
Also found the little ball for locating the right hand outer crank bearing had become detached from the bearing and was just sitting in the locating groove, as was half the pin from the left outer bearing??? No evidence of spun bearings... I am using different casings and new crank, so not an issue.
All gears, dogs and selector forks look perfect, so they can go in the new engine.
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Post by 4l04ever on Apr 8, 2020 23:49:41 GMT 1
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Post by 4l04ever on Apr 9, 2020 21:15:06 GMT 1
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Post by donkeychomp on Apr 9, 2020 21:57:29 GMT 1
Con rods by Deep Purple Looking shiny! Alex |
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Really different.
