Ghosty

You could try at http://www.mecoa.com/index.htm The Cameron 23 has the same tank Cheers Andrew

Hi All, Here it is running after some clean up. Running on 3-1 mix of Coleman's fuel and SAE 30 weight oil. Fuel tank came loose in second run. Cheers Andrew

Hi All, Just received another O&R 60, large exhaust, shown with the small exhaust behind. I will clean up, inspect and run. New one has a 1/4-32 plug instead of the 3/8" fitted to the other. Cheers Andrew

Hi All, After spending the day playing around with the points bucket, I got every thing tightened up, running on an electronic ign Cheers Andrew

Hi All, I have one that I will be fixing the points on to get consistent runs out of, I got a reply about fuel ect from another site, I have listed the reply below. The whole points housing is very loose on the crank case and floats around while running. Cheers Andrew

Hi All, David, I got the mount machined up, still need some end plates made up(waiting on material), have trial fitted to the hull. Cheers Andrew

While I still can't do a lot, I have done the basic layout for the start of the machining of the engine mount, sourced a block of 2" alloy bar stock. Will make the mount to suite the 48" hull. I found a supplier for the ply to build the hydroplane, looking at just over $130 for the ply, but he wanted over $400 for freight, so I decided on a 48" mono hull that I picked up very cheep in kit form. Cheers Andrew

David, Thank you very much for the reply, sorry for the delay, just spent the last 6 days in hospital with heart problems. Cheers Andrew

David, Thank you, I would like the photos and dimensions of the cast mount if you can do it. I have added a photo of the two engines together so you can size it. Each cylinder is approx. 25cc Cheers Andrew

On Epay at the moment in the US http://www.ebay.com/itm/Vintage-1967-O-R-2-Stroke-Cycle-Engine-in-Box-UNUSED-3-4-HP-85-HP-/302334998107?hash=item466491f65b:g:6EEAAOSwaEhZL1ub http://www.ebay.com/itm/OHLSSON-RICE-COMPACT-II-0-85-HP-2-STROKE-PUMP-INDUSTRIAL-O-R-ENGINE-/132230661149?hash=item1ec98fc41d:g:RTkAAOSwDrNZRxWE http://www.ebay.com/itm/Ohlsson-Rice-Gas-Drill-Unique-O-R-Gas-Engine-Vintage-Rare-/201927210259?hash=item2f03ccb513:g:TDgAAOSwfVpYpmHT http://www.ebay.com/itm/Vintage-NEW-O-R-1-HP-Gas-Engine-with-Pull-Start-for-Model-Airplane-or-Boat-/172693219849?hash=item2835516a09:g:jiEAAOSwjL5ZJcUh Found these while searching for an Octura marine engine mount. Cheers Andrew

David, Thank you for the photos, that one looks like a piece of extruded alloy, the other one that I have seen is a cast one. Looks like I will just machine one out of a block alloy. Photo is just one engine I have built over the years.

Hi All, Does anyone know where I could buy one of the Octura boat engine mounts or anyone who is willing to sell one. Or can someone can supply me detailed photos of a mount with some basic dimensions so as I can machine one. Thank you for your help. Cheers Andrew

Here you go, looks like it had a different housing.

Thank you David, Would hate to damage the OEM parts, as it looks like it has done very little running. Will have to hunt down some taps so I will be able to make up a carby adaptor. I have saved the charts for further support. Cheers Andrew

Hi All, I have a silly question about the screw and bolt sizes in the O & R 3/4 hp engines, it may be common knowledge to you but I have only seen one other of these and that was a long time ago. The case screws, carby mount screws, and the output shaft screw. All appear to be 32 pitch thread, but I no longer have any reference material to imperial sized screws and bolts as I have only used metric for the last 35 years. Any help would be helpfull. Cheers Andrew

Webhead PM sent Cheers Andrew

David, My copy is out of the Popular Mechanics Do It Yourself Encyclopedia set, Volume 8 published in 1968, That could be the difference. The diaphragm is in very good condition, may not had much running, After looking around here a lot, I have noticed that the clear on-way valve is missing from mine, this could be causing the problems that I am having. When I change the carby over I will machine up an adaptor piece, so I can always convert it back. Cheers Andrew

I will be replacing the carby with another, not shore from what yet, Looking at quite a few from OS, Super Tiger and OPS. I will make up an adaptor to fit the new carby to the OEM housing. I run and race boats with RCMK K30's, I was just after a base number for the prop to start with. I don't have any photos of the original boat that we built as they were old school photos that were either lost or tossed out on the many moves since. Cheers Andrew

Hi All, I have just found this site., I helped my dad build one of these in the mid 70's from plans out of Popular Mechanics, and I have a complete copy of the article. I have just acquired a 3/4 hp engine to power it, After a lot of cleaning out of the carby it is a good runner, still need to do some fine tuning of the carby. The only info I don't have is the prop size, any info on this would be helpful. If any one is interested I will post the rest of the article.