Still waiting on the frame mods. Popped in to see the Engineer today and the frame is progressing - stainless front spacers have been made and fitted, 2 bracing plates have been cut out on the Plasma cutter with the engine mounts next to be done. Then it can all be welded in. They also managed to remove the cross brace/ side stand mount from the second frame without damaging it, so that will get welded in too. They are also trying to straighten the slight kink in the clip on bars to reclaim them hopefully. In the meantime, I rang Cox's at Reading regards vapour blasting my Pv cases. They are snowed under - behind with at least 2 weeks work So being impatient, I Googled .Vapour blasters, and found a place in Camberley, about 15 miles from me. Popped over there yesterday with the cases, and although they were ready in the afternoon, I couldn't get back there until today;
Cost me £30 !! The finish isn't quite as shiny as Cox's efforts, but I spent 20 minutes with some fine wire wool and I'm happy. I dropped off my Pv barrels and head - Mike, the proprietor, reckons £25.00 !! Will pick them up next week probably. They try and turn parts around in 48 hours so that's great. Also rang Fowlers with an order of the first 15 parts for the bottom end rebuild. Everything in stock, hopefully will land by tomorrow so I can start the engine build, which I will document as before, with pics and part numbers, on here.
£25.00 for the 3 The finish is good but not as good as Cox's. A bit of time with some wire wool gets it up though. Just wanted to tidy them up as they were pretty manky. The plan is to use an Athena top end anyway, but for £25 it was worth getting them done. The first lot of parts arrived from Fowlers too so I can start on the bottom end next week.
Hoping to pick the frame up tomorrow. I did pop to the engineers yesterday - they wanted to check a few bits before welding. They've cut 2 rear engine mount plates and will weld them on. I asked them to leave a gap each side - approx. 2mm - so I can shim the engine sideways if needs be, and I could alter the front mount spacers too if necessary, but I think I have the centre line correct. I was planning on fitting the Ypvs bottom end and an Athena top end, but I think it will foul the downtubes, so I will either go with a standard pv engine or the Lc engine from the yellow bike I got recently. I also started to get the paint off the Tz tank tonight - nylon style disc in my angle grinder. Gonna be there forever with that so may have to invest in some proper paint stripper. I'm also thinking of cutting out the Monza petrol cap and fitting an aircraft style flush cap - got a place locally that stocks Mocal gear so might take the tank and offer some up. If the frame comes back tomorrow, I will add some pics
It's gonna be a real bitsa bike to be honest - a café racer but not like a lot of Tz lookalike café bikes. The tank is the focal point of the bike I think - it's such a big slab of a thing, and I feel a nice aircraft style filler may look a bit more trick. Shouldn't be a big job to fit either. I'm just gonna build it using bits I have and/or like, so will be a "marmite" bike for sure, and very different to my last few builds. I have the yellow Lc to do as well, but I am struggling for the enthusiasm to build another hybrid Lc at the moment - I've done 3 in recent years and just want to do something a bit different looks wise. My latest daydream is a set of pipes like Mutts supplies, but with pea shooter stingers and no cans. If it doesn't upset the fuelling I may well consider it I have the option of either Lc or Pv engine - probably not Athena now though, and either RWU or upside down forks. I want another Metmachex, and need to source a Vj22 rear wheel - supply seems to have dried up on those ! And the frame is still at the engineers - fingers crossed for Friday now
Yea, the VJ21 is most likely the front end I will fit - still waiting on parts coming from Japan before I can progress that. Ordered some more parts from Fowlers for the engine build, so nearly have all the parts for the start of the rebuild. And yes, Clive and the guys are snowed under. The nature of a lot of their work means the small jobs like ours get pushed to the side when the big projects come in, and the studios work is very time critical. I'm in no rush, and Clive knows I wont hassle him, but it would be nice to have it back so I can plan the next mods.
Yea, pea shooters would look and sound awesome Shaped like Allspeeds so they tuck under the engine and exit by the footrests, and kick up at the back into stingers. I hope it's doable from a safe fuelling point of view. I did consider a way of fitting end cans but I will just use another set of pipes for MOT time as I think they could look funny otherwise. I remember Brands last year - there was an old boy parading a Tz350A with pea shooter style exhausts and it was by far the loudest bike out there !
Frame was ready today Can finally add some pics !! The 250 aircooled frame that Alex gave me relinquished it's lower brace/side stand bracket. Clive - the engineer, did a great job of removing it from that frame, with no damage, and transplanting it into my frame;
We decided to leave that bracket "hanging" to allow cables and hoses to pass under the tank more easily. he main job was the rear engine mount brackets. As I've mentioned, the aircooled brackets were way off, so I drew up some templates and Clive cut them on his Plasma cutter and welded them in,
I asked to leave a gap each side so I can shim the engine slightly each way if I need to. I'm flying blind with this build - I have not found any info on previous Lc engines into AC frames, so I wanted to give myself a bit of leeway. My datum was to get the barrels exactly centre between the front downtubes so the exhausts can exit without hitting the frame. So next was to make sure the engine sits where I want it;
I remember the Allspeeds on my aircooled's were very close together as they swept under the engine, sitting inboard of the stand bracket so I'm not gonna mod that. Starting to see the makings of a bike now;
Hi On Lc's and Pv's, the exhaust ports angle in slightly towards each other, drawing the downpipes into the centre line of the engine. On the Athena barrels there are exhaust stubs on the barrels that seem to protrude straight out, meaning they would be directly in line with the downtubes of the Ac frame, plus the downpipes will be a bigger diameter leaving even less room for the pipes. The width between the downtubes on the Ac is significantly less than on an Lc so less room to play with unfortunately. I didn't want to mod the downtubes as it becomes a lot of work/expense. I've not decided yet which engine to go with, but either Lc or Pv should cause no issues regards the exhaust route. I am leaning towards using the Lc, purely from the point of there is less electrical gubbins to find a home for. No servo to mount either. I want to achieve as clean a look as possible regards wiring routing - battery and most other bits will live in the hump of the seat. That will be another job for Clive - to make a tray to hold all the necessaries like battery, Cdi, fuse box etc, leaving the centre of the bike as open as possible. I did consider mounting a Banshee coil on each downtube, just below the tank, a bit like some race bikes, just to be a bit different - will get some first to play about with. Regards chain run, the geometry between the Lc and Ac is the same regards that, so the thinking is that if you can fit a bigger wheel into an Lc and get it to work, then an Ac should work too. I fitted an LC swingarm into a 400 and used a pv wheel before, so although the shape of the frame may differ slightly it's not going to be miles out. The bike's direction is very fluid at the moment - I have not fully decided on running gear/engine/seat, lights or no lights, footrests, pipes ! It's not the best way to build a bike I know, but I'm enjoying the fact that I'm making it up as I go - gives me a lot to think about I may use the VJ21 rear wheel I have - 18 inch which isn't ideal, but a narrower profile of 140 which would help chain run if needed. Lots to consider !!