Honda-SOHC
SOHC.co.uk Forums => CB500/550 => Topic started by: peterengland on August 01, 2020, 02:50:27 PM
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A seemingly magic Honda size of 16mm (which is not in my socket set) can you buy a hexagonal 16mm spanner? Also anyone know why they are made of cheese?
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What bike? Usually it's 17mm. 16mm is found nowhere.
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550 1976, got a couple of new ones last year...16mm. as you say, 16 is found nowhere
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The tappet covers on mine are identical and are 17mm...
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I once got a Hazet sparkplug socket for free when I bought a set of Champion plugs, also 16mm (5/8").
But I think a normal hexagonal 16mm socket would be normally available?
Oh, and I've never known those caps other than 17mm.
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I have 16mm wrenches and sockets allright, yet I have to see the first 16mm nut...
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From my recollection 17mm on mine, been a while though. I have plenty of 16mm spanners and sockets and use them a fair bit, probably on imperial stuff. My socket set has a 6 point socket, I have at least 3 16mm spanners kicking around. Ditto 18mm which are all over my sidecar fittings.
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About "made of cheese", I never broke one in over 40 years of owning sohc Honda's!
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Should be 17mm and a 16mm hex socket is easy to get from snap on, just not easy to pay for
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A seemingly magic Honda size of 16mm (which is not in my socket set) can you buy a hexagonal 16mm spanner? Also anyone know why they are made of cheese?
You could try this:
http://toolsonthenet.co.uk/16MM-X-17MM-ELORA-FLAT-METRIC-RING-SPANNER-2448-Draper.asp
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SnapOn tools are really good and I've had mine for over 40 years, just don't buy more of them than you can use!
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A seemingly magic Honda size of 16mm (which is not in my socket set) can you buy a hexagonal 16mm spanner? Also anyone know why they are made of cheese?
I would guess that they are aftermarket tappet covers, hence the non standard 16mm size and cheese metal.
Anywhere that sells single sockets and spanners should have 16mm available.
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Haven't 'broken' one either but doesn't change the fact that they are soft as s###. Also according to DSS they are a high turnover part. Just crap design
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NOT crap design or material just people tightening them up too much on old O rings
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Probably done up by the same twats who tighten spark plugs like they're anchoring a aircraft carrier. >:(
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Definitely a part where it pays to use a 6 point socket and I have bought engines or rocker covers where they were ludicrously tight either gorilla tightening or corrosion. An open jaw spanner or 12 pointer is more likely to round them off. By the time your wrenching them off with a pipe wrench and the top looks like it's been chewed by a large dog, I geuss silvers will be getting a call for new ones- though I have seen them put back in that condition.....
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I have my original engine and a spare engine. All 16 tappet covers are a slightly loose fit on a selection of 17mm spanners/sockets. They will turn the tappet covers but I am very careful and gentle with them. None of my 16mm spanners/sockets will actually fit onto the covers. Incidentally, my Honda ST1300 Pan European uses one of those exact tappet covers on the oil filler hole for the rear shaft drive hub!
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If you want cheaper ones to wreck the c50 has unpolished and un laquered ones that cost less
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I use a 6 point 'flat' axle type spanner - being flat, there's no tendancy to twist off that occurs with an ordinary spanner as the force is fully in line with the thread your turning. Back in the 70's I made an exact fit spanner from some flat bar as 17mm is a sloppy fit on the cap. (and subsequently have lost it).
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Mine measure just under 17mm. I used a 17mm ring spanner as (unintentionally) it seemed to have the effect of keeping the force low down, reducing twisting. I used moderate taps with a club hammer as it gives a steady accurate firm sharp one-off tap. Not perfect but for me it minimised marking on the tightest one. Sure enough as others find, the seals were flat and hard, and someone had over tightened the caps which were leaking slightly. I wonder if that special grip paste might help, or something like a shim to make a 17mm spanner fit more tightly, although my outcome was ok. The slightly marked one can be moved out of sight!