New 20 ounce tumblers available now! Forum donation credit with purchase. https://www.wildguzzi.com/Products/products.htm#Tumbler
having to make a new cam just for the tach?
Might not the "aero engine" need a different cam anyway? Cam profiles are likely optimized for full power operation at the expense of everything else.
That wouldn't surprise me, but *I don't know.* All I've found out is it cruises at 5500 rpm in the drone. Apparently it is "different," though. It doesn't look like a V75 cam from the pictures I've seen, and definitely not an older small block cam.Maybe a Megacycle V65 cam would do the job? Got one? ;D
I'm impatient, could be running in a week
Thanks for that, Martin.. I'll give it some consideration.Not a chance. Don't have carbs sourced yet, not to mention an electronic magic box. And... with the aero engine front casting to use the stock pickup, the alternator and associated electronics would be hanging out in the breeze. Fine on an airplane but not so good on the ground. ;)I'm pretty patient. ;D You've gotta remember that I took 12 years :o to build an airplane. I want to get it running pretty soon, though. I"d like to get started on my last airplane project yet this winter.
Doesn't front cover from V65 above fit holes ?Alloy ones of them available too on this pagehttp://www.gutsibits.co.uk/pr/TheShop/index.php?f=e&Shnew=&Model=&ModelName=All+Models&Cat=ENA&CatName=Enginesplastic spacer behind it can be doubled up if you need more clearance for trigger
having to make a new cam just for the tach? It might be cheaper to get someone build an electronic in the white face housing. Like the internals of the daytona or sport 1100 tacho. Is that the tacho like the le mans 3 also has?
Yeah, it does, but the cam oil seal doesn't. I know.. no hill for a climber, and could no doubt source a custom oil seal. The Aero trigger is too wide to fit behind it, at any rate. By a lot. If you look back through the original pictures, it's shown. I'm emailing back and forth with Milich as we speak trying to source stuff. Patience is its own reward, they say.. ;D
Good on you Chuck. You do the *best* interesting how-to threads!!!Kurt
Chuck since you can CNC, you could make a thick gasket to fit the cover. It looks like the timing wheel you have ion the nose of the cam, is to mimic the cam sensor and flycwheel sensor the p7/p8 normaly uses, so then an ignition for the same setup should be easy. Other thing could be to read the eprom from your injection box them you get ignition curves. I'm shure there is someone with a reader anywhere in the USA on the board. The eprom is pretty simple.
No gasket needed, oil seal is behind cam trigger and alternator rotor, both are dryThis spacer goes between covers to get cooling airflow, cutting hole in top or fitting two easy if trigger clearance is issue-- but looks ok in picture
So you need a standard SB distribution cover (but without knowing if the oil seals are apt to the aero engine shaft, and having to give up the original timing sensors), or make a new alternator cover by yourself.
Yes, I'm planning on using the Lario cover. Upon further review, my apologies to Martin, the stock cover *will* fit the aero engine casting, but I'm still going to use the Lario casting so I can have the tach drive.
I thought it looked same pattern, I'd have to run as is first to test cam 's useability, conjecture about how it will run , answered, using programmable black box with aero trigger a quick easy way to get running.A man's got to know his limitations. ;D Electronics are one of mine, and I don't know any one that could help me out with that. Fitting points in there prob not too difficult eitherUsing cam profile for small valve heron heads or 4 valve is never going to be perfect, if you must go straight for tacho drive, I'd talk to cam grinder about what you have first, to do it right you have to measure valve-valve and valve piston clearances, then you'll want to measure spring tension, total can of worms with no baseline unless you've run what you have.I've been emailing Milich back and forth. He thinks I should start with a stock V65 cam and go from there. At any rate, I need to clay up the piston and check clearances. I suppose I should also beg, borrow or make a degree wheel and have a go at checking this cam's timing. I've never done that before. I'm a parts changer. ;D I have timed the old 4 valve cams, but the "book" was right in front of me with how to do it.Putting electronic tach inside analogue body doable too I'm sure, lot less mucking about than designing a cam if aero one is already the dog's A man's got to know.... ;) Range converted already ? You work fastI'm dealing with "other people" on that project, so no telling when they will get around to setting a propane tank, running lines, etc. I hate to depend on "other people." It's part of my hesitance to run the electronic ignition from half way around the world with no experience in setting it up..Thanks, again.
I know someone who just welded the cam nose for the tacho on a non tacho cam, that was on a v11 cam, looks similar construction. Tacho gear just needs to be straight, no force on it.
No way I'd cut a (rare) Lario cam, maybe sacrifice a lesser (V50) cam instead.
the lario cam is nothing special, just a v65 cam.considering they used the same camshaft on the two valve heads, and on the four valve heads i would be amazed if they made a special camshaft for the aero engine.
When I get around to it.. ::) I'm going to degree both and see if there's a difference. Should at least add a little to the collective knowledge. It certainly has a different nose, though.