Toward one side: took a step sideways; a sideways glance.
Saturday, June 30, 2007
Delays! Bondage.
Thursday, June 28, 2007
Pipe
Wednesday, June 27, 2007
Almost there - Stress looms
I think bar the water-rail for the other side and exhaust section (need to be dollied to Worcester for a custom fitment as last job) thats all the engineer or brain ache...just need to get some powder coating down and box it all up. Everything has been fitted, trail fitted, refitted, finally shaped and is now a kit ready for probably an 8hrs installation. Welder is still banged up. Basically its just the bulkhead, gearbox tunnel and painting it stand between me and completion...
Still 70days to go, but that aint long, as it needs to prove itself, be tuned and any unlikely issues remedied...Probably get a new 110Litre per minute EWP pump and keep the old one as a spare. Its 4 years old now.
Jag will be absorbing all my time for the next 10days, cause the bloke delivering it, made prior plans reliant on it being done, and obviously there is delays, its a restoration, which has made the job a load of stress for him, and as a consequence, me. I'll do my best to get it finished, but its a bit of unrealistic target, you do such a nice job then rush it at the end, silly.
Sunday, June 24, 2007
Another job bites the dust.
I had never bothered to look at it, bar fitting the levers to the carbs..
Anyway the spacing of the manifold is for throttle bodies really, with underslung linkage or single cable, so you cannot use a Magard or top linkage kit...Good job cause I sold mine :) Anyway thats £50-60 saved.
As such I came to a better solution, both more simple and lighter!
Carbs are at the "perfect" 5degrees of inclination as recommended by the factory.
I happened to have some DHLA40 N Alfa Romeo cable carrier lever arms...
This enables a cable to be run directly from the spindle via a V groove on the main lever. You can see the spacing is VERY tight, as such, a rod-end linkage arm will foul the balance screw on the left carb in any location at full throttle, bar if the linkage is underneath. After noting this gave up on the standard twin cable top linkage idea and started rooting through piles of carb bits for other parts...Lucky have tonnes of levers and linkage stuff.
Levers need a couple of small shaves when the carbs are removed.
I made a tiny cut washer which slips over the cable to sit between the lever and the lead ball on the end of the cable as the able is not Alfa Romeo so the ball isn't a perfect fit on the lever hole -to spread the load on the lead a bit better. (not shown) Had to cut the middle brace from the manifold, but I cannot see it doing too much, the manifold walls are a bit thin, but should hold, the manifold is useless really...but its perfect in port and shape after MASSIVE porting and modification.
I also found yet another problem with the manifold...Its JUNK really...I have invested so much time in it! The flange pattern holes for the carbs are not correctly placed or drilled, the one carb is angled up left to right and the one is correct/flat. The maker couldn't even drill the stud holes in the right place! I noticed the central alignment axis of the spindles was not flat, the nuts on the end of the shafts in the centre were not level..The rear carb was up a little, compared to the front one- which is correct...This is VITAL that they are level...
When you link two carbs on a lever system like the images with a tab and pinch screw, the spindle shafts must be PERFECTLY aligned in the centre, or better still level through both carbs and aligned in the middle...With one "off angle" the levers swipe slightly when the throttle is opened, to exactly the ratio of difference in spindle axis's...As bolted on there was a 1.5mm mismatch between the axis of the spindles..This means a 1.5mm swipe.
The balance screw on the front carb swipes across the tab it sits on -on the rear carbs lever. This means every time you press the throttle the end of the balance screw rubs across the tab 1.5mm, so it wears, so the carbs go out balance ALL the time...No good for me!
I was pissed off to see this and after checking the stud pattern with a straight edge and measuring the distances I was seeing it was a physical pattern difference or mismatch - which was probably impossible to sort, bar welding up the manifold and redrilling the stud pattern...
Anyway, lucky I am using wide carb mount plates (o-rings) from a Lotus Esprit, this means I could tweak all the manifold studs up on the one side and down on the other, after about 1hr pissing around with about 10 fitments and removals I managed to get the spindle axis perfect with no swipe...
I see loads of twin carb manifold fitments that are not aligned, but usually when there are two manifolds and people are just too silly to align them correctly, missing the small details that make and break the carbs, they then moan about balance problems, uneven idle as the levers are rubbing and locking/sticking etc.
I have never seen a manifold with such badly drilled holes! Anyway it was lucky the spacers are wide, cause I could tweak the studs and repair the problem as the carbs are not sat right on the manifold face where you could tweak the studs and it would make no difference, the further from the manifold the greater the effect of tweaking studs. Just had enough gap to get enough tweak and get it aligned.
It now runs a single cable, which could break, hense I like twin cables best, but can carry a space -the throttle pedal is perfectly weighted, not light or heavy, super smooth, travel is the same as the Magard linkage, feel is the same and its more simple.
I need to adjust the top bracket, I happened to find this in a heap of junk, its from a linkage for Dellortos on a BMW 2002, it just happened to fit :) I will remake it as it flexes a bit but its a good template!
Could it be anymore simple? :) NO! Nothing sat on top of the carbs, minimal, effective. Happy, yes.
Trick to using a single cable no extra return springs is to use special return springs on the carbs, these are from Harley Davidson conversion kits?! I happened to have a pair, they are stiffer than normal, fatter coils and shorter with more initial pull, the return is every bit as good as the Magard linkage...It feels no different...It did take me all afternoon to do it though!
Carbs are actually Turbo models, hense the epoxy you can see glued over the lead plugs to stop them blowing out at 25psi of boost? :)
Tarting, cutting, building!
Dried quickly cause it was thinned and I added some activator? Finished off my shroad come lower rad mount.
I may make an airbox in the future, alloy job, then reduce the length of my trumpets by 3/4"...So I will factor in the design of a filter and feed system to the side shroad of the radiator or something.
Did some other small jobs, cut a hole for the oil filter in the plate, drilled new holes to move the rack mount across as far as possible to clear the oil hoses.. blah blah.
Saved 1.2kilos with the cut out bits, off sets my alloy sheets.
Friday, June 22, 2007
Hey Rumpith
Crap catcher
So I remade it, or some of it, the plate shown above needs final cutting and shaping, but its 2.5mm alloy, this doubles as a base shroud for the rad, but also has a section lip- bend up at the back which has 6 holes drilled through it. These holes relate to holes in the radiator base plate, so the rad is mounted to this plate on 6x M4 bolts, its rock solid. Also remade the stilts that hold the radiator up, image shows a new one from alloy tube with an M8 stud screwed into the bottom, which bolts through the chassis...The system before relied on the kenlowe fan poles serving two jobs, 1 holding the kenlowe and 2 holding the rad. No kenlowe this time, so new system needed...I can reuse the old top shroud. I need to fasteners to finish the job.
I also made a crap catcher or deflection plate, basically sheeted the front section of the chassis, to keep rocks, stones and crap out of my timing belts and engine bay.....Also this will force air under the car, gently, rather than it hitting the front cross member and it acting like an airbrake, forcing air up and down in the engine bay...
Needs a few final bends and fastening properly..
I did have this bizarre idea of making the whole bottom of the car flat, like a Lotus Elise. Copying the Elise front spoiler...Flat paneling the entire bottom of the car from one sheet of alloy with just recesses for the wheels, so the undertray and diffuser can be dropped off in one unit in a few minutes.. (no exhaust no problem - chassis and sill edges are same level, making an undertray would be easy) , then buildling an exact replica of the Elise diffuser under the boot, so generating downforce...If the chassis angle can be replicated, no reason it won't work if I make an exact replica...Just needs about £80's worth of alloy sheet...Increase top-end speed also..errr....it'll have enough! Bit of weight increase but... Thats not on my list of prep before the 10CR though :) Maybe next winter when I fit a Subaru Diff and new suspension.
Engine in and out again tonite!
Actually being held up by the welding now! Which is good. Shows I am getting close cause I ran out jobs hense the radiator work, which wasn't essential.
Oh and best not forget to cut a closely fitting hole that the oil filter will poke through :) I did check first I can get a filter remover tool on it :)
Also the engine is VERY solid on the engine mounts, Caterham use these also E-type Jag, they are nearly rock solid, you can't move the engine at all really without waggling the car, so they might even stiffen up the shock towers a tiny little bit? Not as much as the strut brace I will be making though ;)
Oh and I can now mount the remote filter off the plate I added behind the radiator, cause thats 2.5mm alloy also, for this very reason! I love a good plan! I can then hack off those stock radiator mount lugs from the chassis, cause they weight as much as one of my plate sections. Plus mounting the filter off those lugs was a bit messy and I needed to make a bracket anyway, due to the angles involved with mounting the remote filter head on that bracket for the stock rad the bracket would need to be overly complex.
Wednesday, June 20, 2007
Brakes, pipes, making stuff
Monday, June 18, 2007
Ehh!
Wiring is all done! Hooray. My welder bloke is useless, he's fired, will call another guy, who did some good work years ago.
Had to spend some pennies today ordered everything to finish off the car from raly design, not much only £62!...Ordered some random fixings for braided lines, a wilwood master cylinder with remote reserviour for my brakes, few studs, connectors etc...
I think PROPER VVC followers, not BMW ones! are £15 a pop...For that price I am gonna buy another engine! Strip the inlet, VVC system, pullies and everything of it leaving the head and block, sell that stripped off stuff for about £300 like last time, have a spare engine for free and some followers I can reface! Seems stupid to do it any other way!
You know my VVC engne cost me £450, that came with the special bellhousing, special clutch, mod flywheel, spigot bearing for use in kitcar, wiring, dash, about a grands worth of stuff...Flogged everything I didn't need for about £300! I got such a steal £150 for basically everything, the bellhousing alone is £300, £150 for the clutch, about £100's worth of work on the flywheel, £30 for the caterham spigot!
Barely any costs left bar a custom exhaust section and welding and some paint...I have to get this welding done this week...I can paint it then and its really just fitting the thing finally, which is a doddle cause its all been fitted finally anyway. I think the home stretch is very close.
I really need to get a pukka welder and learn to weld, its well over time I need to be totally self sufficient!
Should have pullled my finger out earlier.
Sunday, June 17, 2007
Wiring
Birdies are a tweeting..Sleep time. I think I have done 80hrs on it this week in the evenings and night-time!
Never ending!
Saturday, June 16, 2007
All systems are go.
Got a 960mm 5 groove belt and a 975mm one from Halfrauds and some STP oil treatment for cam bedding...Went to some other places first no joy, Halfrauds had a really crap selection, ie not many, but just what I needed!
Made an earth strap. Things are really coming together. Hopefully by the weekends end I will have strung up and adjusted the wiring for the front, will be run along the chassis rail where it can't be seen on P clips. That leaves errrrrr...Not much, pull it all out, finally assembly everything, do bulkhead and tunnel and then its final build.
Got some followers from ebay, decent quality shame the tit sent BMW M42 engine ones...Funny they do fit, they are the same size, but they are heavy, they aren't Rover ones, what the hell do I want BMW items for, I want Rover items? Some prat selling BMW items for Rover just cause they fit? selling them as Rover items...They may fit but they are not Rover ones...I am disputing the sale atm as the seller is a prat and owes me £80.
I remember someone saying "engine swap, cop out innit" after my blow up..
Cop out, yes right? I could have 1000 triumph engines by now..Engine swap to this standard ain't a cop it, its plain madness! :)
Friday, June 15, 2007
Engine build near complete
Instead an uprated Lotus gasket of the original type. Saves the 0.010" shim on the MLS. Keeps my compression up a bit more.
Funny engine! You do them up to 20nm, then 180deg and another 180 deg in sequence. Seems pretty hardcore by the effort required...Hopefully ok, what can you do, follow the book! I am a K-series virgin. Nasty hearing some creaks and clicks as you do them up! a lump of cast iron it is not!
Alternator kind of fell into place after I found a rare alternator mount for high location, usually its low mounted and right in the way of the shock turret...I managed to get the pulley off my micro alternator, it was stuck on, impact wrench wouldn't shift it without spinning the pulley, had to use some alternative techniques :)
I robbed a 5 groove pullley from a Rover 820 Diesel it fits perfectly enough, but I will lathe some material from it where the nut sits, as the thread on the alternator shaft is designed for a thinner pulley face so there isn't many threads left sticking out as the nut is faced.
It needs a 930mm belt 5 groove, hopefully that won't cause me too much hassle.
It'll pivot from the top point the adjustment is on the bottom link.
All lines up, also its a decent distance from the exhaust mounted this way, which was a problem when mounted low down.
The adjustment for tension is prolific as the alternator lugs are vertical, so the bottom link swings it out loads, can probably run a 950mm belt if needed...The bottom link will be stronger than the top mount, as the top mount is a bit feeble, the adjustment bracket I will make after finding a belt tomorrow will be taking the majority of the vibration and load as well as being the adjustment point, probably some stripped of 4mm steel like a normal bracket but a pair of them gripping the bottom lug either side and fixed with M10 hex bolts. Also pleases me that the bracket system is out of sight under the alternator, leaving only a pivot and bracket at the top.
Neat enough and also just enough room for my water rail to go over the top.
The only remains of the old water thermostat housing is the plastic bit between the block and dipstick tube :) Hacked off the housing!
Coming on, but detailing stuff to look and work good is time consuming...
When its all together I'd hope for the neatest looking and most simple conversion possible, total neatness.