621 replies to this topic

[Pie]

well that answred it *claps sarcastcily* cant say iv looked how aston have done it, it cant be connected throttle cable surly?

It has though lol you didnt ask what mechanism made one open then the other.

[JetBLICK]

To aid your completely unrelated banter... ed4ran has a lotus elise exhuast. They have a little whatsit valve that works on exhaust pressure, i think?

[JetBLICK]

Went to the rollers today
















Dont get to excited

Spent nearly 4 hours setting up that stupid carb, so the bloody thing idled properly. It was idling lovely, then went to put it on the rollers, dipped the clutch and it stalled... not a good sign. Kept happening, and the guy suggested that i mite have put the trust washers in the wrong way round... and i was adement that i hadnt. In the end there was nothing else to try except get it back home on the trailer and check it.

Turns out i was right, i had not put the thrusters in the wrong way. The problem tho, was that one of them was too big. When i first put the motor together i used 3 thou oversize thrusters on all four. After guaging the gap i then changed a pair of them for a pair of standard size thrusters, to get the correct gap of 6 thou. It turns out one of these two std size washers was a +3thou, incidently it was the one that sits in the block, not the mains cap, hense why when i re-checked the gap, i measured it at 6thou, which should have been fine - and i didnt notice the other one.

So its back to looking like this...







Pretty hacked off right now , but, people make mistakes and i'm not going tarnish anyones reputation on a public forum just yet, i'll give them a chance to grovel first

Hopefully when this is fixed tho, all should be good... fingers crossed hey

[Pie]

Dan i am gutted for you mate. When you said about it cutting out, i said to you itd be something to do with the thrusts. I did first think that they might be shagged, but one being too small, well, such is life mate. Itll be on the road sooner than mine if thats any bonus.

Bet that made you laugh jewboy.

[miniboo]

so does that mean you didnt have enough endfloat? sorry, being an ignorant, but hopeful, future engine builder

[alexcrosse]

just a tip for starting new engines. Have a trusty HIF44 for the first start up, keep it simple. Then put the weber on AFTER you no it works

Also, could you tell me how you tuned in the idle settings? You just turn out until it ran, then turned them in until it stopped, and came about half a turn out or somin?

Cheers, Alex.

[JetBLICK]

Soz alex, got no idea how he tuned the weber. I asked him how he knows what he's doin, lol, thers soo many parts and different combinations of everything, and the difference between it working and not is fractions of a fraction of a mm. I'd imagine your best bet would go and speak to someone who knows, and ask them to show you mate, because its all witchcraft to me.

Boo... the problem was i had no endfloat. With the thrusters in, you knock the crank over to one side, so its pushed up against a pair of the washers. Then on the opposite side you measure the clearance between the thrust face and the thrust washers, and it should be between 4 and 6 thou (i think or its mite be 5-7?). To get the right clearance i needed one pair of +3 thou oversize thrust washers, and one standard pair. It turns out one of the standard pair was also +3 thou oversize... which didnt give enough clearance.

Pie boy... u said i got em in the wrong way round, i'm not that clumsy

[Jammy]

As Dan says, if you have no endfloat, when you put your foot on the clutch, all the bearings will tighten up laterally, making it very hard for things to rotate, hence why it stalls. If you had too much endfloat I assume you'd have problems disengaging the clutch, plus I would suspect a major failure of the bottom end not too long into the future.

[Pie]

Pie boy... u said i got em in the wrong way round, i'm not that clumsy

I didnt, in said malvern rebore managed to on rogers engine.

What i said is that it sounded very similar to what happened to rogers engine. He dipped the clutch it cut out. What had happend is that the 3 thou oversized thrust washers had managed to get asw thin as a piece of paper! Then when you put you foot on the clutch all the bearings tightened up and as both you and jammy said, it resulted in stalling.

Still chin up mate, that student loans there for a reason, as you jolly well know

[JetBLICK]

Been busy today, picked up various bits to put the motor back together, got new thrusters... learnt my lesson now... always measure end float with a dial on the end of the crank... if i'd have done that this would have shown up the first time round

Engines goin back in 2morra hopefully, got a few tips off the RR guy on sortin out the brakes and should have time to do them tomorrow too.

The RR guy also suggested i put a box in for the weber, as it could be considered a fire hazard So i fabricated this little beauty... well pleased how it turned out, i was like back at school when we used to make 'nets' for 3D shapes and make em outta paper... cept this time it was in ally, woop! found a real world use for something i did at school!



L8rz

[mad4mins]

looks great dan

dare i say you will be at bingley in it?... (runs to touch wood!)

[Pie]

Fire hazard?! PAH!!! your cars made of metal dan, not papier mache

[retroracer1380]

Fire hazard?! PAH!!! your cars made of metal dan, not papier mache

To be fair mate its all wiring behind and that went up nice wen a certain jew connected the timing light up and earthed the +ve coil terminal PMSL

[JetBLICK]

Fire hazard?! PAH!!! your cars made of metal dan, not papier mache

To be fair mate its all wiring behind and that went up nice wen a certain jew connected the timing light up and earthed the +ve coil terminal PMSL

what u chattin b'aaat, pie wern't there


Yea, the hope is to be at bingly, fingers crossed.

I can very happily say that its all back in now Gotta run down the motor factors first thing to get some brake fluid and oil. With any luck and all running smoothly (which it undoubtably wont) i may be able to get it done in time to run him down to the rollers in the afternoon

Ta-da

[Bungle]

your brace bar's look neat

they don't look as good when they bolt to the outside of the inner wing