Honda clutch casing bolts

[Piercee100]

Hiya,

Been rebuilding my CD185 engine over Christmas and what I thought was going to be a quick job has turned into two weeks of blood sweat and tears.

Anyway, nearly finished but due to the seized side casing screws and heavy use of a good old fashioned impact driver I need some new screws / bolts for my side casings. Any idea where I can get them and what to look for?

A web search hasn't shown me much
____________________
Rides: Honda H100a (Retired), VT500e (Sold), Kawasaki ZX400 (sold), Kawasaki GT550 (Sold), Suzuki Inazuma (Daily), Honda CD185t (Broken), LML Star 2t (Last run edition).

[stinkwheel]

Various lengths of either M5 or M6 socket head capscrews.

If you have the originals still, you'll know what lengths you need. You can buy them in bags of 50 or 100 off screwfix or in bags of five for the same price on ebay.
____________________
“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[Teflon-Mike]

Arghmp!
CD185 you say?
WELL, the flange pattern is common accross the Benley series; BUT on the primary drive cover; first they ARE all M6 thread; but... there are variouse different lengths, as in three or four, depending on which position they go in, on which cover casting.
Bolts on the super-dream are different to on the 125T2 and again the CD200 6v.. THAT much I know.
On the Super-Dream, they are small hex, too; usual M6 are a 10mm AF hex; but the honda parts use a small 8mm AF flanged head, due to the clearances round the bosses. The CD200 had an assortment of whatever who-ever last put the thing on, while T2 seemed to have all Jap-X screw heads.
I tend to use standard allen heads; they have always fitted the cases I've had; and selected from assortment in the tubs; but I have had to grind a few to length.

Check CMSL... they some-times give the specs; else get a bit of long threaded rod, measure it; offer up the case, then screw it all the way in each hole and measure protruding, to get bolt length, then again without case to get required thread length (you dont really want more thread in the cast hole than you can get away with ideally)

I used to have a local iron monger who would sell by weight; so you told him how many of each bolt size you wanted and he'd pick them out the boxes than give a price on weight, as in a couple of quid, rather than 20/30p a bolt! Unfortunately they have closed down.. "Lack of Parkin' - evry 1 goes Screw-fix now, they 'av a car-park!"

Which is a real pitty; as screw-fix sell by the bag... and its 25 or 50 at a time, for £3-4 ish, which can get pricey if you only want one or two of each size!

In which case; you may want to check Dave Silvers Spares; they do the individual bolts, to Honda Pt-No, usually for probably 20/30p ish at a guess. Which for the dozen you want, could work out most economical still.

Best help I can give I'm afraid.
____________________
My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?'

[Piercee100]

Actually that's not a bad idea. I do have the original bolts complete with mangled screw heads and I do have an old fashioned Iron monger near me (If as you say, he hasn't gone out of business) and I'll see if he can match them up to something.

Does it matter on the bolts used- high tensile or stainless?

Thanks
____________________
Rides: Honda H100a (Retired), VT500e (Sold), Kawasaki ZX400 (sold), Kawasaki GT550 (Sold), Suzuki Inazuma (Daily), Honda CD185t (Broken), LML Star 2t (Last run edition).

[The other Paul Rudd]

[Teflon-Mike]

Tensile.
Stainless is more brittle & if you have ever had to get a sheared one out of a blind hole you would NEVER stick a stainless steel screw into an ali casing. EVER!
____________________
My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?'

[Aff]

[DrSnoosnoo]

[LaurenceR46]

Hi

I purchased some various sized bolts from ebay user kayfast1 for my R6 and they are great quality and work perfect. With a few washers the dimensions are the exact same as the Yamaha ones for a much better price and you got a load of spares.

Cheers

[Robby]

[DrSnoosnoo]

I see! So what are the bolts made of in an ally case?

EDIT what I mean is, rather than stainless steel, what are tensile ones made from then?
____________________
I'm Sam; Northern, Ginger, Lover
Did have: '95 ZZR600 '83 CG125 '97 ZZR1100 '15 Hypermotard 821 SP Do Have: '10 ZX10R

[Robby]

Mild steel, possibly with a zinc or cadmium coating for corrosion resistance.

Stainless is hard, brittle, and causes alloy to react (corrode more). Mild steel rusts, but gives you more warning before snapping and is easier to drill out.

[DrSnoosnoo]

I see, so could you not use stainless bolts with some copper grease? I am actually interested, not attempting to be a smart arse
____________________
I'm Sam; Northern, Ginger, Lover
Did have: '95 ZZR600 '83 CG125 '97 ZZR1100 '15 Hypermotard 821 SP Do Have: '10 ZX10R

[Robby]

You could do that to try to get around the corrosion problems, but you're still stuck with it being too hard and brittle.

Also remember that even with copper grease, you're going to have metal on metal contact in places where the grease is scraped off by the threads.

[DrSnoosnoo]

Cheers for the info. I've been scouring screwfix and other places. I've read BZP .. is this a nickel/zinc coated thing? possibly better to use for ally cases?
____________________
I'm Sam; Northern, Ginger, Lover
Did have: '95 ZZR600 '83 CG125 '97 ZZR1100 '15 Hypermotard 821 SP Do Have: '10 ZX10R

[Aff]

[DrSnoosnoo]

Learn something new every 2 days!
____________________
I'm Sam; Northern, Ginger, Lover
Did have: '95 ZZR600 '83 CG125 '97 ZZR1100 '15 Hypermotard 821 SP Do Have: '10 ZX10R

[Piercee100]

Update-

After finding bolts of the correct size from work (our workshops cut them to size for me) they're no bloody good! Can't get a socket or spanner over the head when placed in the casing's so had to buy genuine replacements cross head bolts from David Silver's came to over £11 with postage for 10 bolts, but atleast I know they'll fit!
____________________
Rides: Honda H100a (Retired), VT500e (Sold), Kawasaki ZX400 (sold), Kawasaki GT550 (Sold), Suzuki Inazuma (Daily), Honda CD185t (Broken), LML Star 2t (Last run edition).

[Fubar 123]

Would socket headed cap screws not fit ? BZP steel ?