Waste of money .....

[greenmonster]

Thanks for sharing!

[koko64]

HNY
Any progress and updates ?

[MonsterHPD]

Hi, Happy New Year to you as well, and thanks for asking :-)

Not much has happened on this one, but I'll give updates on both projects in the near future.

[MonsterHPD]

As it happens, not too much has happened so far, since I've been spending my time on the downdraught heads for the HYM1100 motor. Right now, that project is at a point where some investigation is needed to decide where to go, so I've decided to tear down the M800 motor and start with an external clean-up. Since it will be a complete overhaulc with bearings etc, I want the motor to look pretty on the outside as well.

2024-01-06 16.38.34 by torbjörn bergström, on Flickr

Also. the cylinder heads will need some attenton, since some of the plastic filler has started to lift at the edges, not sure what to do there, but some porting work will certainly be needed. It may not show too well in this pic, but it's there ....

2023-09-28 10.07.41 by torbjörn bergström, on Flickr       

So, that's it for now. Not too exciting :-)

[koko64]

Hows it going?

So how did you fix the epoxy filler that lifted?

Any results from the downdraught head work?

[MonsterHPD]

Hows it going?

So how did you fix the epoxy filler that lifted?

Any results from the downdraught head work?

Hi Tony,
thanks for prodding me. I've been planning on some updates for some time now, but I've been too busy ..... as is usually the case with us retired people, I hear :-)

I will do upates on both, however so far nothing much has happened wit the M800 so far.

[MonsterHPD]

As mentioned, not much to report.
As I wanted the motor to look reasonably nice also on the outside (according to some, a new for me ...), I'd agreed with a wet-blasting company to wet-blast the complete (nothing inside, of course) motor, to keep as much as possible of the debris out of the motor.
I spent a good deal of time and effort on producing plugs and such for all openings in the motor, as well as putting screws in all and any places possible.

Got the motor back, looking smooth and pretty, but due to other activities, I left it on the garage floor for a week and half. When I finally opened the motor, I found it full of wet blasting grit, and a lot of pretty ugly-looking corrosion:

2024-07-14 16.50.07 by torbjörn bergström, on Flickr

2024-07-15 12.02.00 by torbjörn bergström, on Flickr

As I found out, I'd made a mistake, plugging the hole for the clutch release rod in th left crankcase, not in the left side cover  

I later checked with the grit blaster, suspecting some corrosive whet blasting media, but acc to him, it's just water and porcellaine grit. In any case, it's a serious clean-out before I can do anything else.

As for port epoxy, all the know-alls say "Splash Zone", but the company in the US that I contacted refused to deliver, due to Hazardous material concerns. Having sent out a question on a FB porting forum, I got the info that a Goodson material is the same, only manufactured on license. Checking their homepage, turns out they produce all the machinery you can only dream of, but they also have retailers all over the globe. I sent out a request to their swedish and german retailers, heard nothing from the swedes, but got a swift reply from the germans. So I've orderd a kit from the germans, let's see how that turns out.
Their homepage, in case anyone's interested:  http://www.cpr-automotive.de

That's about it for now, nothing much will happen until I have my other two bikes up and (hopefully) running.

Kind regards,
Torbjörn.

     

         
ast summer, I delivered the motor to a wet-blasting

[koko64]

Thanks for sharing. What a drama!

[MonsterHPD]

Hello, all.

I'm looking up the spare parts I need for the M800 motor (this hobby is getting expensive ...), and I would like to be able to set the big-end bearing clearance where I want it. However, the spare parts catalogues I have only give one part number, no alternatives. Does anyone know more about this, and where I might find alternative bearings for the "small" crankshaft (Ø40 mm big end journal)?

Kind regards,
Torbjörn. 

[stopintime]

Biggelaar did mine. Or at least checked them when he did my engine. Of course, I have Carrillo rods, so maybe that change things. I assume he'll know anyhow.

[MonsterHPD]

Thanks, I'll check with him. Carillos or no would not make a differene.
The parts list for the M800 Scrambler lists 2 different
shells, so I'll check if they are ok for the M800 motor.
I'll check dome more parts lists as well, who knows what they might hide ....