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Ride-or-die
20-09-2006, 03:24 PM
Well the engine switch began with my dad going to meet the chap at South Mimms service station. Apparently the guy is a top bloke and he seems it in my emails too. Turns out his son who crashed the bike also had tri outs for the Red Bull team but didn’t make it in. therefore going by the guy im going to assume the engine is sound and well looked after as it also has a brand new looking front sprocket on it and fresh new oil.

Here it is…
http://i49.photobucket.com/albums/f287/jaslander1983/1.jpg

The one it needed to replace….
http://i49.photobucket.com/albums/f287/jaslander1983/2.jpg


So I started with the usual, farings off, tank, air box, carbs, all nice easy stuff, the got to exhaust headers, they are a bugger aren’t they, took a while but I got them off.. Some pics below show these stages.

Air box off…
http://i49.photobucket.com/albums/f287/jaslander1983/5.jpg

Carbs off…
http://i49.photobucket.com/albums/f287/jaslander1983/6.jpg

Next it was a few pipes and then the front sprocket. Then before u knew it the engine was jacked up to support its weight, the bolts were removed and the engine nice and easily lowered to the floor. And to be honest the new lump went in rather easy too.

Empty frame….
http://i49.photobucket.com/albums/f287/jaslander1983/8.jpg

So bolted everything back together in reverse of how it came off, oil, coolant and she fired up first time, smoking like mad but that cleared after a fair old bit of running, clearly just burning off oil seeing as it has been laying on its side for a week. So I sorted a few things out like the chain etc and took it up the road, it clearly needs to be taken for a proper blast and needs to be run to clear it all out but it runs and its real smooth. I just need to do a few more adjustments, it seemed to get rather hot for what I done with it, also needs new front fork seals.

New engine in….
http://i49.photobucket.com/albums/f287/jaslander1983/9.jpg

Carbs back on…
http://i49.photobucket.com/albums/f287/jaslander1983/10.jpg

All finished just needing a clean…
http://i49.photobucket.com/albums/f287/jaslander1983/11.jpg

In total the whole job only took about a day, some of which on my own, stripping the carbs off and some with the help of Gaz and Paul, and to take a positive from the experience I leanrt a lot about my bike.

It does have one problem, the steering lock stop when on right hand lock has bent so the bars hit the frame, but that’s not a biggie. And its possible that the cam chain tensioner which I sorted on the old engine needs to be done on this one

Just like to say thanks to everyone who said they would lend me stuff, the Sir god of EB lateshift for pointing out the engine and to Podd and Gaz for helping me do the work.

r6paul
20-09-2006, 03:34 PM
Nice little write up :)

Was a good day, and the swap wasn't too bad. I didn't hinder any progress and i actually learnt some bits about bike engines. lol

Tis looking good J, we'll have to go for a blast when mines back up and running.

troutslayer
20-09-2006, 03:41 PM
that engine's been raced at some point. hope its not been tuned at all/too much

Ride-or-die
20-09-2006, 03:43 PM
that engine's been raced at some point. hope its not been tuned at all/too much


i guess time will tell, at the end of the day tho i only really need the sump and engine case off it so if i come accross any problems from it have the pants tanned of it i will just steal the bits i need and put the old one back in

RaceMeNSee
20-09-2006, 04:04 PM
I Came round when you werent there! lol

stu600cc
20-09-2006, 04:18 PM
It was a bugger getting the engine out of my J1

Well done :clap good work

Gazdaman
20-09-2006, 04:21 PM
A job well done if you ask me. And what made you say it'd been raced Trouty? That case is a giveaway, as are the odd lockwiring holes, but I didn't think you'd be able to see them.

Gaz

troutslayer
20-09-2006, 10:38 PM
A job well done if you ask me. And what made you say it'd been raced Trouty? That case is a giveaway, as are the odd lockwiring holes, but I didn't think you'd be able to see them.

Gaz

NRC case is the first giveaway, but also look at the engine mounting bolt holes, you'll see that they've been marked. the mounting bolts would also have been marked, so that a racer could give them a cursory glance to check that they are aligned and the bolts are tightened.

i cant see the lockwire holes from that photo.

the fact that the guy has bothered to mark things up suggests that he took at least a reasonable amount of care in his craft though, so its probably a decent enough engine.

Looks like a good deal on Dorito's - vat free, bargain! :)

Lateshift
21-09-2006, 07:18 AM
It was always going to be a possibility that it could have been raced i suppose, but unless it had been ported/flowed/skimmed etc then i reckon you would have paid more for it, i certainly think a tuned engine he would have asked more for :)

Talking of marking the bolts etc, it seems to be common practice now anyway, my Aprilia has all the bolts marked with paint from the factory, pretty much everything from caliper bolts right the way through to the subframe :)

(never could understand why lock wiring everything was actually required because apart from the more obvious stuff, when a dab of paint does the job well enough for visual checks :) ).

Gazdaman
22-09-2006, 01:34 PM
Lock wiring stops it working loose...

Especially important for bolts/caps that hold fluids in. Never heard/seen things marked up.

When we drained some oil out of the engine (over-full) the oil was brand spanking new. And the filter looked pretty new. I think the engine's a good-un. May need a new CCT, but there's a new one on J's broken engine, so we'll steal that.

Gaz

Ride-or-die
22-09-2006, 05:25 PM
yeah sure thing, i still havent had the chance to take it out yet, the lan is to tomorrow but weather might not be one to ride in after such a long break from being on the saddle

Lateshift
22-09-2006, 05:28 PM
I know what the lock wiring is for, but think about it, how often does the sump plug on a road bike work its way out, how often does the filter fall off? (the point i was making is that actually its only a safe guard, most alloys expand and lock together when they get hot and the bits on motorbikes are no exception.

Some of the lock wiring i have seen goes to the extreme, when in actual fact it was long believed that a dab of paint would tell you if a bolt had begun to work loose long before it did actually loosen fully.

I can appreciate the safe guard and realistically its something that needs doing that probably saves you even having to look, but i know on some tracks at Scrutineering they dont even get on the floor to check the bikes out, if its looked safe to ride and the rider had all the correct kit i have seen people be waved though ;)

Gazdaman
23-09-2006, 12:03 AM
I think the point is that these things go in and out so many times on a race bike. A mate of mine racing in minitwins actually went out for a practise session with no rear wheel axle nut.

It's easy to do up a bolt finger tight, only to get distracted by something and leave it like that. Lock wiring, not only keeps it on the bike, but the fact you have to pay attention to the bolt whilst lock wiring is a failsafe in itself.

I also did realise that you knew what lockwiring was for, just kinda came out wrong.

Gaz