dougbgt6 Posted June 29 Report Share Posted June 29 Part 1 A couple of years ago I put on side panels and the front cowl around the radiator on my GT6. The front cowl does a great job directing air through the radiator. The side panels do a great job looking pretty. I came to put the airfilter box back and found it fouled the side panel. I cut a piece out the side panel leaving an inch clearance under the box and lined the bare metal with rubber edging. Some months later the airbox was off again and I noticed the rubber was compressed, the air box was hitting it, couldn't have been by much or there would have been more damage. I asked the question at the time, "Is a one inch swing accepable?" no one could say, but I bought a set of NO engine mounts which still sit in my spares bin. Part 2 Lately the GT6 has got worse and worse at starting, deep embarasement next to Andy Cook at club night, his starts first time, on the button. I waited for him to leave before I start churning. But now it doesn't start at all. I've done the usual stuff, cleaned plugs, new ,leads, All spark tests OK, compression, uniform and high enough, fuel, no longer leaking and reservors full, timing unchanged. Squirts of "START YA BASTARD!" and it fires! So timing and the rest OK. Hooray| Blip the starter motor with hand over carb intake, he no suck! NO VACUUM! This must be an air leak between carb and head. Hopefully the manifold gasket. This was exactly what was wrong when I first got it running again 10+ years ago, shot manifold gasket. So, is 1" flex OK? Or is it knackering my manifold gaskets? Doug Link to comment Share on other sites More sharing options...
JohnD Posted June 29 Report Share Posted June 29 (edited) I'd say that your diagnosis of knackered mounts is spot-on! Get those new ones off the shelf, pronto! John PS this isn't "engine flex"! The Triumph six block is so tough and rigid that in a Ferguson Tractor, a version of it forms the chassis link between the front and rear axles! Just like Formula One cars! It's "knackered mount flex"! J Edited June 29 by JohnD Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 29 Report Share Posted June 29 doug as the gasket was fitted by some plonker in luton and with the problems we had with fire rings i wonder if a compression test would show some deterioration do we need to organise a visit one week end ??? Pete 1 Link to comment Share on other sites More sharing options...
ahebron Posted June 30 Report Share Posted June 30 12 hours ago, JohnD said: PS this isn't "engine flex"! The Triumph six block is so tough and rigid that in a Ferguson Tractor, a version of it forms the chassis link between the front and rear axles! Just like Formula One cars! Tell us more John, I am interested. Link to comment Share on other sites More sharing options...
dougbgt6 Posted June 30 Author Report Share Posted June 30 Yes, John is correct, of course the engine it's self doesn't flex! I must choose my words more carefully. But gratified he concurs. The compression test seemed OK, all + or - 2, around 148, except one down to 140 I'll change the manifold gasket first and see if it starts, if so, then the engine mounts. Then perhaps a visit from the Guru of the North. All a bit like my mum getting the house cleaned before the cleaning lady arrives! Doug Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 30 Report Share Posted June 30 if it fires on an aerosol of squirt then this sounds like a pump/supply problem is yours a glass top ( we have kits for them ) Pete Link to comment Share on other sites More sharing options...
Unkel Kunkel Posted June 30 Report Share Posted June 30 14 hours ago, JohnD said: I'd say that your diagnosis of knackered mounts is spot-on! Get those new ones off the shelf, pronto! John PS this isn't "engine flex"! The Triumph six block is so tough and rigid that in a Ferguson Tractor, a version of it forms the chassis link between the front and rear axles! Just like Formula One cars! It's "knackered mount flex"! J I didn't ‘t know there was any involvement of the ‘ six’. I thought the Fergie had a 4 cylinder Standard Vanguard type ( wet liner) engine for the home marker - TE 20 ( Tractor England) or a Continental engine ( designated TO , for Tractor Overseas) for the overseas market. Link to comment Share on other sites More sharing options...
JohnD Posted June 30 Report Share Posted June 30 Same difference! The stressed engine concept has been around since the start of the 20th century, but in F1 in was the Lotus 49 in 1967 that set the trend hor all such cars ever since. The front of the engine is bolted to the back of the body tub, and the rear suspension is bolted to the transaxle (gearbox/differential) behind that. The engine/gearbox bears the stresses of the rear suspension. John Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 30 Report Share Posted June 30 doug if the engine block rotates 360 deg you have a problem and need a very long throttle cable Pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted June 30 Author Report Share Posted June 30 (edited) 1 hour ago, Pete Lewis said: doug if the engine block rotates 360 deg you have a problem and need a very long throttle cable My ex-father-in-law once took me up in his bi-plane I had the seat in front, he had the driver's seat behind. We did 360 deg barrel rolls, I felt ill, then I noticed the intercom had gone quiet and we slowly started to dive groundward. I thought "I have a problem". Now THAT's a problem! Doug Edited June 30 by dougbgt6 Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 30 Report Share Posted June 30 you know you like to live dangerously panic,!!!! Pete Link to comment Share on other sites More sharing options...
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