CB550k1 US Import - UK registration

[Sesman]

Thought as much. I’ve never seen it in all the engine rebuild posts I’ve seen. Awaiting an avalanche of corrections now…..

The engine sounds absolutely mint by the way. Just a nice soft rustling from the top end and no knocks from the bottom end under load.

Gonna thrash it next year.

[Oddjob]

Not uncommon to see all the crank holes the same in the cases, seen quite a few with letters all the same and the same with the cranks, seen a few of those as well but both together? not seen that as far as I can recall.

[juitz]

In that case you'd be correct with 6 greens and 2 browns for the rods. The crank as I'm sure you've worked out are all yellows. Hard to find these days.

I have some if you need them, got more than 10 IIRC.

Cheers, ill ping you a DM to see what we can do with the yellows 👍

[Bryanj]

The 400 i recently did for comfy had all the cases the same and all the pins the same, discussing it with Trigger last time we met we came to the conclusion that Honda got better at machining as time went on, or bought new machinery

[juitz]

Finished painting some casings over the weekend. Not 100% happy with the finish. Used Simoniz Matt Alum Engine Enamel spray but found it a bit runny and the cold weather probably didn't help. Any specific tips on how to get the best finish?


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[Sesman]

Acid dip, media blast (extreme caution, meticulous prep and repeated, scrupulous cleaning), acetone wash, 20deg ambient temp, preheat the paint by standing can in 50deg water, warm the parts, mist coat followed by two successive Coates at 10min intervals, allow to dry in 20deg or above ambient for 24 hours then bake at 200deg c for 60 mins (place parts in cold oven and leave in as it cools). I’m sure there will be supporters of other equally successful methods.

[McCabe-Thiele (Ted)]

In an unheated garage or room this late in the year is not the best time to paint as I'm sure you know - not helped by the humidity either imho.

I've just been painting my steering yoke on the 500 - I used what is effectively a heat lamp - a pair of 500W tungsten lamps on a tripod to heat up my Spray Booth - a large cardboard box.
Left under the lamps after painting for 30 minutes then moved the bits into the house for more drying.

Final drying was done by putting the bits on top of the radiator for 48 hours.

FWIW your cases look pretty good to me in terms of finish.

PS My can of paint was kept in the house so was at around 75 F before I started.

[juitz]

Thanks guys. I'll try the mist coat approach as well. I did end up warming the can in warm water, as I found that cold was very runny and had a couple of droplets form. Warm parts and paint was much better.

I also used a heat gun to help dry the paint a bit before curing it in (ahem) my BBQ. Warmed it up nice and let the parts cure at around 180degC for a over an hour.

[Laverdaroo]

A la Allan Millyard


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[juitz]

Anyone know where I could get the transmission oil pipe connected to the filter 15154-374-000

Only place I can find that has it is honda4parts.nl but they have a minimum purchase of £135 ☹️

[McCabe-Thiele (Ted)]

If its similar to the pipe on the 400 I bought a length from this place via e-bay.

IIRC the sample was long enough - they do a number of diameters less than £3.

https://www.ebay.co.uk/itm/384349352378?var=652522935873

[Oddjob]

Got a few of those, I'll pop one in the post for you. PM me address, not 100% sure I have it.

[juitz]

Hey All,

Have a slight issue ion the upper crank case.
I seemed to have damaged part of the thread for the m8x100 bolts.

There's still thread there to engage, but I think I'll need longer bolts. I'm thinking 120mm should do it.

Has this happened to anyone before?

The pic shows a normal thread on left, and the one on the right is about 20mm lower before engaging thread.

[McCabe-Thiele (Ted)]

I always have fears about having your issue on older bikes.

Have you tried putting a tap of the original size down the hole?

[juitz]

Yeah put a tap in and it's ok, just looks  like the first 15mm of thread are now gone.

The hole is 35.6mm deep, so assume there must be available thread to use.