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Ian and Nigel were trying to keep their next project secret. Don't tell them we know.

Thats right but the ones at Johns don't look like that........yet !!!

Brilliant! Alan.

LORD T Somebody stolen Nigels number plate I had a Ferrari tractor but sold it last year to fund house improvements

Got the ITW running tonight but then I lost it!

The situation is not totally clear. The gearboxes on early machines were filled with SAE90 oil (not EP) and could be topped up. There was then a switch to "sealed for life boxes" which were non serviceable. You will see that the "sealed for life" service bulletin refers to the Hayter 21 . I'm guessing that either the same applied to the Osprey. The attached is an extract from an Owners Instruction and Spare Parts Book covering Ospreys from serial 61/5771 upwards and a 1969 service bulletin which only refers to 21s.. Later books make no mention of the gearbox at all which is suggesting that no user maintenance was required. I would suggest that you remove whatever plug is fitted and if no lubricant is apparent make a bent wire dip stick and see if any is present. If none can be found it will be decision time! I would suggest (and it's only a suggestion!) a mix of SAE90 and Molyslip https://www.dropbox.com/s/5sjvlcenhz6ghfe/Hayter%2021%20%26%20Osprey%20Gearboxes0001.pdf?dl=0

Thank you very much, sounds like a bargain to me

That's fine mate, no problem, it cost me nowt so that's what it will cost you !!

If you dont mind hanging on to the solo we can work something out closer to the dates but it may have to be the long wait to Newark

Thanks I just ordered some rings from overseas .5 sets for $11.89 with free shipping.So I have little to lose if wrong size but I measured my piece of ring I found in engine for thickness and measured piston and bore so I think they will fit .May need to grind some to get wright end clearance . I will post results once I get them and install. Thanks