'74 Ossa MAR.

[Rod]

Hello ppl,
Does the MAR have an engine # stamped on it somewhere? If so, where please ?

[David Lahey]

On top of the RH front engine mount lug

[Rod]

Thanks David, for reasons unknown mine has nothing stamped there.

[David Lahey]

Does it look like they have been ground off?
Here are a couple for reference

[Rod]

Nah, doesn't look like anything has been ground off, another mystery with these old beauties, perhaps.
Any shininess in the pics is due to me with a soft wire brush having removed any grunge.
Cheers.

Engine # location..jpg (235.33 KiB) Viewed 15331 times

Where Engine # should be..jpg (243.76 KiB) Viewed 15331 times

[llewdaert]

Hi Rod,
I think 'back in the day'
New-replacement cases were not stamped so you could DIY stamp and keep the engine numbers matching.
Cheers

[Rod]

Yeah, good call, that's a possibility. I'm not concerned, just curious.

[Rod]

Did the Ossa engine number match their frame number? Like Bultaco's did.

[David Lahey]

Rod I went to have a look for the first time at frame numbers to see if mine matched and found something surprising.
I found an engine number the same as a frame number, but they were in different bikes!!!
One had an engine number that matched the frame number of a different
I bought them from different people years apart!
A possible explanation is that both bikes may have been owned at some point by Robert Marsden. I know that the seller of the bike with the matching frame number had bought the bike from Robert.
The other , with the matching engine number, I bought from Darryl Martin and I can't remember what he told me about the history of the bike except that he repaired the frame on it when he was an apprentice.

[Bully fanatic]

Just for something interesting for an Ossa owner. I`ll be working on an Ossa road bike very soon. I`ll take some photos of it when I get it to have a look over it. The owner wants me to get it going for him. That is weird with your 2 Ossas David!