NickJ

So cool! I never knew any made it over here. have worked with them a bunch in Europe, just the ticket for snow at odd angles. It was pretty much the secret allowing us to build this thing

If its not the same weekend as mountain challenge I should be able to pop over

Darn good thinking there, might have to put together a shopping list, with the speeduino turning up, I need to organise all the associated cabling, gadgets and whatsits too

I used 5 min epoxy for a leak, little bit of fibreglass mat to bridge the gap, held on for over a year until I got around to fix it, just got to get it clean I guess was the trick

Been putting the wideband kit together, just need to sort out a cable from the sensor to the unit, is 7 core trailer cable ok or does it require shielding?

That makes sense to me, as I understand it being that the bearings don't really do anything, if they measure up and the increase in load (from less combustion blow by) causes failure, new bearings of the same dimension will fail too, ie there is an oil issue.

Took the bits into Cliff Bond today, the boys there were bloody good, after a measure up it became apparent someone has been at the pistons before now, (and made bit of a mess) but they managed to find some old stock mazda rings on the shelf that can be massaged to fit. I'll strip the block fully this weekend and drop it off monday for them to work their magic. I also put a piston through the ultrasonic cleaner at work, tore the bulk of the carbon off really well, might just cycle the rest through.

This is along my thoughts on the subject, the issue with the bearings is most I can source are metric sizes, while the mains and BE are currently 0.010" oversize which are proving a little more difficult. This is what i've been told, but I can't see how extra load is put on the bearing, my thoughts are reassembly caused a slight difference in clearance?

Cheers, I'm going to have to follow up on that, I work over in Hornby which will make getting there difficult, but it needs to happen!

My reading indicates checking and adjusting the gap like you say is ok, but to downsize that far may be taking the piss. Now that I have the wideband and planning electric ignition, it kind seems I should do it all correct.

Trying to track down rings for the fiat twin cam in the Niva and as the engine is of the older 1600 variety parts are a little scarce, so far i've only been able to get rings in 80.2mm bore, currently the bore measures as 80.0 but after a hone that may open up a touch, is it legit to open the gap on the oversized rings to fit into 80.0mm? I assume the pistons would need to be replaced if I had the bores opened to 80.2? What is the opinion on bearings, (big and main) even though they measure up good and show little sign of wear, is replacing them because the engine is out a good call, or is it a case of don't fix what is not broke?

Looks like the Niva is getting a Speeduino, let the fun begin

Exactly that, these posts are making for good afternoon reading between stints in the shed

$85 for slc free and wideband sensor was a pretty good deal, shipping was $16, be hard pressed to find a second hand sensor for $50

And just got an email that the wideband is on the way, yay for tracking numbers to refresh daily!

I just ordered the free cos i'm cheap and like assembling kitsets, hopefully thats means it moves a little quicker

Good work on the wof! How did the carb tuning efforts go?

You should totally sell the speeduino to save it from potential tea spillage, freeing up the funds for wideband purchase Have you ordered one before? hopefully its just the christmas break, i've heard nothing since checkout confirmation

With the workshop staff still on summer break I spread Lada/Fiat bits across the main workbench and had a leisurely measure up of vitals I then spied a lonely looking mill in the corner and gave her something to do End result was 2.1mm off thickness taken off the 8mm flange to get it flat, was a pig to hold down without warping too much, I now fear it may flex and wobble in use, but hopefully will seal better/easier than it was before. The engine side is thankfully not as bad as it would be a pain to hold down but if I can work it out it might get similar treatment.

That Atom is priced like a juicy carrot just out of reach but ever so tempting. If any of you guys get any more bored with your speeduinos get in touch

Doin rings and bearings on the Niva, if you have anything along those lines, but plan on ordering all that from Euro-Italian

A bit unlikely but I was thinking along the same line, swap the sensors over? Wouldn't radiation effects be low compared to the flow of oil over the sensor?

I see a few of you have toyed with Speeduino, how are you finding it? considering setting one up to run the spark in the Niva so I can do away with the pesky points.

How is that cam gear? such a bargain price! Currently rebuilding the Niva, you don't happen to have a spare headbolt do ya? one of mine had an unfortunate accident