Our MX5 Miata bought a $1,600 crank key.
We left him for a timing belt. The shop called and said the keyway was all wallowed-out, that this was a thing on the first-year production. Basically the crank is too short. I think this engine was used in the economy 323 then turned frontways and fitted with a gussied-up valve drive and a nose pulley longer than the crank nose. Eventually it gets to wobbling real bad. It can shear the key and then the jumping pistons smack into stuck-open valves, no fun at all.
For more fun, this car is NOT a snow-car: too low, summer tires, excess pep at low RPM. And it has snowed every other day. Not enough to stick the bigger vehicles, but the Miata has been stuck in less than this. We called the plow guy, rather than risk getting the Miata onto the garage slope and get stuck blocking everybody.
We left him for a timing belt. The shop called and said the keyway was all wallowed-out, that this was a thing on the first-year production. Basically the crank is too short. I think this engine was used in the economy 323 then turned frontways and fitted with a gussied-up valve drive and a nose pulley longer than the crank nose. Eventually it gets to wobbling real bad. It can shear the key and then the jumping pistons smack into stuck-open valves, no fun at all.
For more fun, this car is NOT a snow-car: too low, summer tires, excess pep at low RPM. And it has snowed every other day. Not enough to stick the bigger vehicles, but the Miata has been stuck in less than this. We called the plow guy, rather than risk getting the Miata onto the garage slope and get stuck blocking everybody.
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You cannot repair the key way on the crank?
Special welding rods, then machining.
Or machine down, shrink fit a longer piece to remove problem permanently.
Labor to remove, repair and fit back would be expensive.
Ship had a twisted crank, was trued to 0.007" and machined, fitted back.
40' long, 8' crank throw. Daihatsu engine, IIRC.
You tried to fined the real original long crank? That would have solved the problem for good.
Special welding rods, then machining.
Or machine down, shrink fit a longer piece to remove problem permanently.
Labor to remove, repair and fit back would be expensive.
Ship had a twisted crank, was trued to 0.007" and machined, fitted back.
40' long, 8' crank throw. Daihatsu engine, IIRC.
You tried to fined the real original long crank? That would have solved the problem for good.
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Bummer, hard to find parts for cars of that age I have found.
We have done work like that before to not have to tear apart the engine.
We have done work like that before to not have to tear apart the engine.
This has been sitting behind a friend's house since 05, regular inquiry led to her asking me if I wanted it for 1000$. I'm on the way over... It's pretty crusty, but that's to be expected. 1984 bmw r80 g/s.
Good score……those ohlins shocks are worth that! (Edit…..only one shock…..looks to be a GS80 with the one sided swingarm!)
80’s early 90’s? (Edit II; sorry didn’t see the supplied info….84 R80GS)
they made a dakar version of it that would be sweet to restore to. 😎
80’s early 90’s? (Edit II; sorry didn’t see the supplied info….84 R80GS)
they made a dakar version of it that would be sweet to restore to. 😎
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I have the top end off, as it had a stripped exhaust spigot, but there is a beauty to working in a machine shop. I knew it was not going to be just a carb clean. I'll probably rebuild the gearbox too, without knowing who was in it last it's just piece of mind. As long as the British pound stays soft buying all my parts from motobins, and most service parts are easy to get. Hard to get is an original toolbox and toolkit. There should be a special place down below for people who don't keep the original stuff with the bike.
Bought the cheapest external USB sound card I could find Aliex, going to take a stab at the Pi Zero 2W flavour room correction DSP project on ASR.
We have a double bin, but much smaller. When I brought it home and showed it to my Chinese MIL with hand gestures, she handed me a whole chicken to barbecue in it!
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Every time I see a plastic compost barrel I am reminded of a time when someone added ashes. From the fireplace. They weren't quite dead yet. Fire in the yard and PVC puddle.
Don’t worry PRR, we got gas logs in our fireplace…….we do have a burn pile for yard waste that i put a shovel full of ash from every now and again into our current compost pile, but certainly not live ash!
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I still have a couple of those from my high school mechanical drawing class. Man, I loved that class. Too bad it's a dying art.
These days whenever I need to sketch out a block diagram or schematic, I always intend to force myself to climb the learning curve and get up to speed on some kind of CAD software. Then I end up scribbling on the back of an envelope as usual. ¯\(ツ)/¯
These days whenever I need to sketch out a block diagram or schematic, I always intend to force myself to climb the learning curve and get up to speed on some kind of CAD software. Then I end up scribbling on the back of an envelope as usual. ¯\(ツ)/¯