Edgeflyer Posted March 30 Share Posted March 30 Hi All  Having partly rebuilt my 1990s Laser 75 I put it away for finishing. Now I've come to use it I find spares are now tricky. I particularly need Valve push rods; Cylinder head screws; backplate gasket; clips or attachment fixings for the exhaust and carb  Can anyone advise where to get these? Seems a shame to ditch it now! I've put new bearings etc. I'd like it for my restored Falcon.  Thanks for any help Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted March 30 Share Posted March 30 Hi edge flyer. Sounds like a relatively simple fix. Whats the problem with the pushrods its unlikely that they wear or have you lost them ? Any screws should be comercially available and its simple to make a gasket. Exhaust clips might be an issue but I thought the 75 exhuast was held in be grub screws ? Dont dump it you can do it and good luck. 1 Quote Link to comment Share on other sites More sharing options...
Ron Gray Posted March 30 Share Posted March 30 If you go onto the FB Laser owners ‘club’ you will find a guy called Paul James. He is arguably the No1 guy to go to for Laser engine work now. 4 Quote Link to comment Share on other sites More sharing options...
Edgeflyer Posted March 30 Author Share Posted March 30 Thanks both. I have no push rods. Not sure why. Correct now I remember grub screws. Quote Link to comment Share on other sites More sharing options...
RottenRow Posted March 30 Share Posted March 30 Those older Lasers used BA screws, not metric.  Assuming the silencer and carb. tapped threads are in good condition, you’ll need 2BA or 4BA grubscrews (I can’t remember which but I think 2BA).  The same goes for the cylinder head bolts. You’ll need to measure the length required. Allen-key capped bolts.  Modelfixings should have them.  I don’t recall gaskets being fitted, I thought they just relied on the fine finish of the mating faces, possibly aided by the thinnest smear of silicone.  Brian.  Quote Link to comment Share on other sites More sharing options...
Jon H Posted March 30 Share Posted March 30 8 hours ago, Edgeflyer said: Valve push rods; Cylinder head screws; backplate gasket; clips or attachment fixings for the exhaust and carb  New pushrods are available, loads were left over. Head screws dont need changing unless lost or rounded. Never had a backplate gasket, just a thin smear of silicone sealant. 75's didnt have carb/exhaust clips except the very last few, are you sure its a 75? In any case carb clips were in plentiful supply when i left so there should be loads available Quote Link to comment Share on other sites More sharing options...
Edgeflyer Posted March 31 Author Share Posted March 31 Oh thanks Jon. I'm going on what you told me way back! "Laser 75 from the 90s". But I may be remembering wrongly as I also had a 70. I sold one and kept the other to service. It does have grub screws for the carb and exhaust I've now found. Picture of the parts I have... Where would I order the push rods from? The Laser company is still functioning is it? The problem with the backplate and head screws is simply I've stupidly lost them. I don't know what thread they are? Quote Link to comment Share on other sites More sharing options...
Andy Stephenson Posted March 31 Share Posted March 31 It looks like you have lost the push rod guides, these could be made out of a section from an old telescopic aerial. They will need o rings top and botom to seal them. As mentioned above the screws are very likely BA on an engine of this age. Quote Link to comment Share on other sites More sharing options...
Edgeflyer Posted March 31 Author Share Posted March 31 Hmm yes I forgot about those. I have the o rings annoyingly but no rods no guides. Nothing listed on Leeds m s website. Maybe I will sell the parts I have. It's easier. Any takers? Quote Link to comment Share on other sites More sharing options...
Jon H Posted March 31 Share Posted March 31 That is a 75 for sure. Pushrods and tubes for an 80 will fit, you will have to ask model shop leeds to chase those up.  Screws are 4ba all round. cant remember the lengths off the top of my head. O rings are BS008 if my memory serves me. Quote Link to comment Share on other sites More sharing options...
Edgeflyer Posted April 1 Author Share Posted April 1 Thanks Jon you're a star. I will now chase them up! Quote Link to comment Share on other sites More sharing options...
Edgeflyer Posted April 1 Author Share Posted April 1 Well I asked Leeds MS and they say they have not received anything from Laser yet so it's just what's listed on the website. Quote Link to comment Share on other sites More sharing options...
Chris Walby Posted April 1 Share Posted April 1 My understanding is that Laser Engines (Geoff) has spare parts, but has not sent them to Leeds Model Shop. Once they receive the parts they will then sell them on to us. Â I don't really want to nag, but our only route is to keep phoning and emailing Leeds Model Shop asking for spare parts and in turn they might be able to convince Geoff to send them the parts to sell to us. Â Quote Link to comment Share on other sites More sharing options...
Edgeflyer Posted April 1 Author Share Posted April 1 Yes that fits what Leeds said and I know they are highly regarded. As my Laser has been in bits for 5 years plus Im sure it will wait. Quote Link to comment Share on other sites More sharing options...
Chris Walby Posted April 1 Share Posted April 1 2 hours ago, Edgeflyer said: Yes that fits what Leeds said and I know they are highly regarded. As my Laser has been in bits for 5 years plus Im sure it will wait. Probably flawed logic from my point of view, but if everyone sits and does nothing, won't Geoff think that no one wants spares and won't send Leeds the spares. Â If we all let Leeds know we want to buy spare parts, they will let Geoff know. The more of us who ask, the more likely the parts will turn up sooner rather than later. Quote Link to comment Share on other sites More sharing options...
RottenRow Posted April 1 Share Posted April 1 Geoff has got boxes of bits and pieces left over… Jon showed a couple of photos of some of them last year. What else is he going to do with them? He’s not going to sell them to modellers himself. So why hasn’t he already sent them to Leeds? Perhaps a difference in what Geoff wants for them and what Leeds will pay for them. Leeds’ stock does get replenished occasionally as they do have more parts available now than they did previously. There is no harm is asking Leeds though, as Chris suggests.  Brian. Quote Link to comment Share on other sites More sharing options...
Ron Gray Posted April 1 Share Posted April 1 Sorry but I have no longer got any faith in Geoff! He promised that lots of parts were going to be delivered to MSL in July / August last year. He promised that more engines were going to be made available through MSL. And on a personal note he’s had 2 of my 200 in-line twins for repairs since last September! Quote Link to comment Share on other sites More sharing options...
Robert Welford Posted April 2 Share Posted April 2 Yes I had a promise of a 300 FT that was supposedly built, but nothing forthcoming 😞 1 Quote Link to comment Share on other sites More sharing options...
Edgeflyer Posted April 9 Author Share Posted April 9 As usual I found all the lost parts when looking for something else. They were put away safely and labelled. 3 Quote Link to comment Share on other sites More sharing options...
Nigel Dell Posted April 10 Share Posted April 10 13 hours ago, Edgeflyer said: As usual I found all the lost parts when looking for something else. They were put away safely and labelled. Oh do I know about that! I am furiously looking for multiple things in the hope I will find one of them! If putting things away safely were an Olympic sport I would be a gold medalist! 😳🤔ðŸ¤ðŸ˜‚ Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted April 10 Share Posted April 10 14 hours ago, Edgeflyer said: As usual I found all the lost parts when looking for something else. They were put away safely and labelled. I bought some new glasses 3 weeks ago for close up work, have you any idea where I put them ?😡 1 Quote Link to comment Share on other sites More sharing options...
Edgeflyer Posted April 11 Author Share Posted April 11 When that happens either in me pocket on on me ' ead! Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted April 11 Share Posted April 11 On 10/04/2025 at 11:09, Paul De Tourtoulon said: I bought some new glasses 3 weeks ago for close up work, have you any idea where I put them ?😡 Left them at the shop ? 😀 Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted April 11 Share Posted April 11 56 minutes ago, Engine Doctor said: Left them at the shop ? 😀 No, I remember putting them in my Yamaha's top box, and bringing them into the garage, then I thought that they are too new to leave in the dust, and that's the last I remember holding them, getting old,,, Quote Link to comment Share on other sites More sharing options...
Edgeflyer Posted April 13 Author Share Posted April 13 Getting on well but 2 problems I hope someone will help with. Firstly setting the timing. The marks on the 2 cams presumably point to the central pinion but at what point piston top bottom or where? Secondly one valve opens and springs shut nice and crisply. The other is stiff. I've lubricated the stem. Do I need to take it apart again and work on the stem? I seem to remember that assembling the springs and retainer clips was awkward waiting for bits to fly apart. Quote Link to comment Share on other sites More sharing options...
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