yorkshire_spam Posted April 3, 2020 Report Share Posted April 3, 2020 I had my pair of HS4 carbs cleaned, faced and re-bushed by CarbEx, then I rebuilt them with new spindles etc. They've been attached to the existing engine in the Spitfire and I've tuned and tested them. I'm happy with how the car is running on them. The engine rebuilt has now reached the stage where I think it's time to swap over and get the new one up and running: The engine is my old 1500 "spare" that dropped a valve on an event in 2015 (and smashed a rocker, drove the valve guide out of the head and dinked the piston and the bore) After rebuilt it is now: +60 overbore New pistons Maxspeeding Conrods Duplex vernier timing gear Newman Fast Road cam 10.2:1 compression ratio (head skimmed after headwork done) Peter Burgess "Fast Road" specification head Crank polished (no grind needed! Win!) Piston/Ring/Conrod assemble masses matched to within +/- 1gram across the set Sometime in the next few weeks I might actually have time to swap the engines over! By the way... it's purely a "vanity" engine build, I have no justification for all the money I've put into it, I just figured I'll only do a very small number of engine rebuilds in my life, so I'd like to do one "properly", so I indulged myself and spent last years bonus pay on it! 2 Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 3, 2020 Report Share Posted April 3, 2020 have you got rid of the waxstat inserts ?? pete Link to comment Share on other sites More sharing options...
yorkshire_spam Posted April 3, 2020 Author Report Share Posted April 3, 2020 1 minute ago, Pete Lewis said: have you got rid of the waxstat inserts ?? pete Yep, they are long gone! I think I got rid of those in about 2014. Link to comment Share on other sites More sharing options...
yorkshire_spam Posted April 3, 2020 Author Report Share Posted April 3, 2020 I checked my blog, turns out it was 2013 when I removed them! Link to comment Share on other sites More sharing options...
Nigel Clark Posted April 3, 2020 Report Share Posted April 3, 2020 Great spec for your new engine. Personally, I would wait until the end of lockdown is in sight before fitting it. You will want to be able to do a few decent trips to run it in. Just my view, but short trips to do essential shopping wouldn't be the best running in process. That spec deserves a better start in life! Nigel 1 Link to comment Share on other sites More sharing options...
jiggawhat2k Posted April 3, 2020 Report Share Posted April 3, 2020 What a great looking engine, makes me want to clean mine up a bit... 1 Link to comment Share on other sites More sharing options...
yorkshire_spam Posted April 4, 2020 Author Report Share Posted April 4, 2020 13 hours ago, Nigel Clark said: That spec deserves a better start in life! Nigel You have a good point Nigel, but I'm not sure once I'm out of lockdown when/if I'll have the time to swap them over - now might be the time to do it, but the question is can I ust let it sit there once it's done? Will I have the patience to save it for a better run-in opportunity once it's fitted? 12 hours ago, jiggawhat2k said: What a great looking engine Thanks @jiggawhat2k, the only let-down is the head. It was painted and looked lovely after all the porting was done, but after it was skimmed to increase the CR some of the paint came off, I didn't do a great job touching that up. Cheers, Sam Link to comment Share on other sites More sharing options...
yorkshire_spam Posted April 12, 2020 Author Report Share Posted April 12, 2020 I bit the bullet and pulled the old engine and shove the new one in! 2 1 Link to comment Share on other sites More sharing options...
Nigel Clark Posted April 13, 2020 Report Share Posted April 13, 2020 Well you were never going to resist the temptation! Hope fitting up ancillaries and fire up go well. Nigel 1 Link to comment Share on other sites More sharing options...
yorkshire_spam Posted April 13, 2020 Author Report Share Posted April 13, 2020 46 minutes ago, Nigel Clark said: Well you were never going to resist the temptation! Hope fitting up ancillaries and fire up go well. Nigel Too true. Also my daughter's boyfriend was keen to help and learn during lock-down, so I thought Id make good use of the willing help! Thanks, fingers crossed all being well it might fire up today! Link to comment Share on other sites More sharing options...
Colin Lindsay Posted April 13, 2020 Report Share Posted April 13, 2020 11 minutes ago, yorkshire_spam said: Thanks, fingers crossed all being well it might fire up today! Remember - grit your teeth, cringe, turn your head away... and then turn the key. Same as I do. Link to comment Share on other sites More sharing options...
NonMember Posted April 13, 2020 Report Share Posted April 13, 2020 11 minutes ago, Colin Lindsay said: Remember - grit your teeth, cringe, turn your head away... and then turn the key. Same as I do. Yes, first fire-up never works right if you don't cringe and grit your teeth. 😁 3 Link to comment Share on other sites More sharing options...
Iain T Posted April 13, 2020 Report Share Posted April 13, 2020 On 03/04/2020 at 11:07, yorkshire_spam said: After rebuilt it is now: +60 overbore New pistons Maxspeeding Conrods Duplex vernier timing gear Newman Fast Road cam 10.2:1 compression ratio (head skimmed after headwork done) Peter Burgess "Fast Road" specification head Crank polished (no grind needed! Win!) Piston/Ring/Conrod assemble masses matched to within +/- 1gram across the set I noticed you have used Maxspeeding conrods, they are aggressively advertised have you used them before? Iain Link to comment Share on other sites More sharing options...
yorkshire_spam Posted April 13, 2020 Author Report Share Posted April 13, 2020 25 minutes ago, Iain T said: I noticed you have used Maxspeeding conrods, they are aggressively advertised have you used them before? Iain Nope, I asked around on a few forums and found people who had used them before and nobody had any complaints that I found. I guess time will tell if they are any good. Link to comment Share on other sites More sharing options...
Iain T Posted April 13, 2020 Report Share Posted April 13, 2020 I am rebuilding my engine, stripping it tomorrow, and was wondering wether to just balance or replace the conrods. I did have a look on the inter web and most seem to give them good reviews. Can I ask where you purchased them, PM me if you wish. Cheers Link to comment Share on other sites More sharing options...
yorkshire_spam Posted April 13, 2020 Author Report Share Posted April 13, 2020 1 hour ago, Iain T said: I am rebuilding my engine, stripping it tomorrow, and was wondering wether to just balance or replace the conrods. I did have a look on the inter web and most seem to give them good reviews. Can I ask where you purchased them, PM me if you wish. Cheers I bought my set off ebay, £175 I think. My original rods in that old engine were manky, I figured by the time they'd been cleaned and lightened I'd have spent more than "risking" it on a maxspeeding set. Link to comment Share on other sites More sharing options...
Iain T Posted April 13, 2020 Report Share Posted April 13, 2020 Cheers, scary low price for a set of 4 conrods but if produced in enough quantities perfectly feasible. Link to comment Share on other sites More sharing options...
yorkshire_spam Posted April 13, 2020 Author Report Share Posted April 13, 2020 5 minutes ago, Iain T said: Cheers, scary low price for a set of 4 conrods but if produced in enough quantities perfectly feasible. Yeah, with the price of Carrillo rods close to that per rod, it was either maxspeeding or refurb the originals for me. I spent frivolous money on the engine, but not that much! Link to comment Share on other sites More sharing options...
Iain T Posted April 13, 2020 Report Share Posted April 13, 2020 Interesting and tempting, remember nothing over 9,000 rpm😁! Link to comment Share on other sites More sharing options...
Nigel Clark Posted April 13, 2020 Report Share Posted April 13, 2020 47 minutes ago, Iain T said: Interesting and tempting, remember nothing over 9,000 rpm😁! Well certainly not over 9k with 1500... At least not while running in! Nigel Link to comment Share on other sites More sharing options...
yorkshire_spam Posted April 14, 2020 Author Report Share Posted April 14, 2020 It's an old Triumph 1500 if it handles around 5.5K reliably I'll be more than happy. Link to comment Share on other sites More sharing options...
Steve P Posted April 14, 2020 Report Share Posted April 14, 2020 Sam, Breaking in process is crucial,mine started p,ing petrol from one of the float inlets so had to turn it off straight away,then an oil leak. This was my 1500 that i spent a fortune on,ended up grenading after 500 miles.Cracked head let water in the bore. On another note, I was on the Raiders run (Blue Vitesse) when your old one dropped a valve,hope it all goes well for you. Steve Link to comment Share on other sites More sharing options...
yorkshire_spam Posted April 14, 2020 Author Report Share Posted April 14, 2020 2 minutes ago, Steve P said: On another note, I was on the Raiders run (Blue Vitesse) when your old one dropped a valve,hope it all goes well for you. This is that engine! Reborn! (and rebored!) I'll be breaking this one in nice and steady once the lock-down is lifted, some decent length journeys, plenty of hi-torque pulling but keeping the revs well down (2.5K max), then it'll get a really good check over before I start thrashing it. It's all a bit moot at the moment as it won't start, flattened the battery trying last night. On the plus side it primed up the oil pump nice and quick and the oil light went out nice and quickly. So at least I know it has oil pressure. If I get chance today (I'm working at home) I'll go back over the engine checking the cam and ignition timings again. Link to comment Share on other sites More sharing options...
Steve P Posted April 14, 2020 Report Share Posted April 14, 2020 I primed mine with a drill before so it had oil everywhere,and proper break in oil from the land of Donald. It has a 123 Tune USB dissy on it,it fired up first turn of the key,before i wanted it too really.Drove great....for 500 miles,now being rebuilt again.Contributing factor might have been not re-torquing the head down soon enough because i didn`t have the tool for the ARP head bolts. Steve Link to comment Share on other sites More sharing options...
yorkshire_spam Posted April 15, 2020 Author Report Share Posted April 15, 2020 It runs, but my attempts to video the first fire up failed, and when I did manage to video the second fire up the sound is totally out of sync with the video. I think I'm better with old Triumphs than I am with video cameras. (Think I fixed the video/audio issue!) 2 Link to comment Share on other sites More sharing options...
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