|
|
Post by bfireaspen on Jul 30, 2016 3:24:45 GMT 1
Hi from Colorado USA, New forum member here. I have a 1981 lc 4LO that came out of Canada. I have restored this bike from the frame up. lots of work as you all know. My crank seals went south so I split the case and it looks like the tolerances for the crank and con rods have gone south also. Nobody has parts for crank for the 80-83 4LO on this side of the pond. My question is, PJ Engineering has a complete crank for 315 pounds. Drop in, all you need is the crank seals. What say you all?
I tried to post a picture, but it is too hard to do (or haven't figures it out) and the tequila was calling.
Thank you forum members.
Blair...........
|
|
|
|
Post by bare on Jul 30, 2016 4:08:51 GMT 1
Google Scott Clough at SCRracing.com (or something colse to that) He's in the Los Angeles area.
He will Deal with your problem... expertly and satisfyingly.
Seriously recommended, you can do Very much worse.
|
|
|
|
Post by dusty350 on Jul 30, 2016 7:09:21 GMT 1
Hi Blair Welcome to the forum mate  Pjme have a good reputation over here. I have used them for about 4 or 5 crank rebuilds in the past and have always been very happy with the results. As Bare says, if you can find someone nearer home it may save you some money, plus I never like the idea of a newly built crank being posted. I've seen how some parcels get handled by postal services and they don't always handle them with care  If you have no other option then a crank from PJME will be a good buy. And needless to say, use genuine Yamaha crank seals. Good luck and enjoy the forum. Regards Dusty  |
|
|
|
Post by gordo555 on Jul 30, 2016 8:47:27 GMT 1
Hi from Colorado USA, New forum member here. I have a 1981 lc 4LO that came out of Canada. I have restored this bike from the frame up. lots of work as you all know. My crank seals went south so I split the case and it looks like the tolerances for the crank and con rods have gone south also. Nobody has parts for crank for the 80-83 4LO on this side of the pond. My question is, PJ Engineering has a complete crank for 315 pounds. Drop in, all you need is the crank seals. What say you all? I tried to post a picture, but it is too hard to do (or haven't figures it out) and the tequila was calling. Thank you forum members. Blair........... Hey Blair, I just completed an RD350LC build in NM (Canadian 4Y3), not too far from you... I used a new crank from PJME, and was VERY pleased with the crank from them, it was spot on. I also used Scott Clough in California for my top end machining, and although not quick (he's a very busy guy) I was quite happy with his work. I had to source a lot of parts from the UK, and Norbo, the site proprietor here provided a lot of it. Also, all the expertise on these bikes is located right here on this forum, so if you have any questions, the lads here will get you through whatever issue you're having.  |
|
|
|
Post by bfireaspen on Jul 30, 2016 15:24:04 GMT 1
Thank you all, never thought about the postal people tossing that crank around Dusty. Still, I would still have to order most of the parts from GB to get the rebuild done. There is a shop in Arizona, CrankWorks, that will rebuild and balance for $950 and I still have supply the parts, seems a little high to me. Got an email out to Scott Clough to see what he can do to fit me in and pricing. One more question, is balancing the crank on these 4LO's worth the cost? Thanks.
|
|
|
|
Post by gordo555 on Jul 30, 2016 16:02:59 GMT 1
Thank you all, never thought about the postal people tossing that crank around Dusty. Still, I would still have to order most of the parts from GB to get the rebuild done. There is a shop in Arizona, CrankWorks, that will rebuild and balance for $950 and I still have supply the parts, seems a little high to me. Got an email out to Scott Clough to see what he can do to fit me in and pricing. One more question, is balancing the crank on these 4LO's worth the cost? Thanks. FWIW, the crank I received from PJME was VERY well packed, and when I set it up in the V-blocks and got an indicator on it, it ran true within a half-thousandth of an inch at the shafts, pretty damn good I would say for having been shipped halfway around the world. I looked at the cost of the parts (PJME uses only high quality Jap bearings webs and rods) and it worked out to be much cheaper than having my existing worn crank rebuilt here. I opted for the upgraded silver cage small end bearings which I think are a good move in a two-stroke. I looked at crank works but given the cost, I couldn't justify it for a street motor. If I were building a truly hi-rev racing motor I might consider it, but I think that with the degree of other variables present in the system, unless you're going to line bore and totally blueprint your cases the degree of overall superiority of a dynamically balanced crank would get lost in the weeds on a motor like this. Better to spend that money on some good porting and blueprinting on your cylinders and head, as you WILL be able to see and measure the difference there (dyno). Just my $.02 Gordo |
|
|
|
Post by arrow on Jul 30, 2016 16:14:45 GMT 1
Welcome to the forum.
|
|
|
|
Post by bfireaspen on Jul 30, 2016 19:45:50 GMT 1
Thanks Gordo, your right about adding all the costs up. Not going to race this bike, just want a good long term runner. Plus with all the seals and gasket being shipped along with the crank, post was only 105 pounds. That's cheaper than shipping for crank alone to Cali. Porting will be done. Thanks to everyone, I'll keep you all updated.
Blair.....
|
|
|
|
Post by dan4771 on Jul 30, 2016 19:49:12 GMT 1
Welcome to the forum
|
|
gsomos
L plate rider.
Posts: 14 
|
Post by gsomos on Jul 22, 2017 4:39:28 GMT 1
Welcome!
|
|
jarvy
L plate rider.
Posts: 35
|
Post by jarvy on Jul 22, 2017 9:01:04 GMT 1
Welcome to the forum.
As I live in Switzerland I also had the same problem. All the good stuff is in the UK and after my crankshaft bearings
failed I opted to just buy a brand new one from PJME along with the genuine seals.
It arrived well packaged and undamaged.
Will one day get the original crank either rebuilt (in the UK) or sold for rebuilding.
|
|
|
|
Post by lolly on Jul 22, 2017 9:40:48 GMT 1
I've just put a new PJME crank in my 4LO , no problems , great service
|
|
|
|
Post by Mr Kipling on Jul 22, 2017 10:09:24 GMT 1
hi n welcome , enjoy the forum..
|
|
|
|
Post by mattybeckett on Jul 22, 2017 19:23:44 GMT 1
Welcome to a great forum
|
|
If you have no other option then a crank from PJME will be a good buy. And needless to say, use genuine Yamaha crank seals.
