L.A.B. said:Not all Commandos produced between 200976 and 211110 were Combats (Hi-Riders for instance, were not Combats).
From what we know there appear to have been a few Combats with lower serial numbers than 200976.
It's less likely there were many, if any, later than 211110.
Any particular reason for asking?
nortonspeed said:Combat is the only Commando without a large sump filter
L.A.B. said:All 200000-on 750 Commandos, Combats or not (so all '72 and '73 750s) were without the sump filter.nortonspeed said:Combat is the only Commando without a large sump filter
dynodave said:I don't buy the published numbers.....matching # 200205
grandpaul said:The "C" stamp on a Commando head is the easiest way to fake a combat.
It has been said in jest, but is entirely true: "There are more Combat Commandos on the street today, than the factory ever produced".
nortonspeed said:L.A.B. said:Not all Commandos produced between 200976 and 211110 were Combats (Hi-Riders for instance, were not Combats).
From what we know there appear to have been a few Combats with lower serial numbers than 200976.
It's less likely there were many, if any, later than 211110.
Any particular reason for asking?
I could give you a reason why not wanting a Combat:
Combat is the only Commando without a large sump filter so all (metal) dirt will directly flow into the oil pump :cry: Serious design flaw :!:
auldblue said:As a mater of interest how much crud have you taken out your sump filter? And by all accounts the amount of oil the combat belted out their breathers all the crap went with the oil so the fresh oil top up would be as clean as a sweetie , so what's the problem.......apart from bearings ?!!!! A few buggered crank cases and the like so all in all regardless of engine numbers a real winner from Norton only recently surpassed by the 961.nortonspeed said:L.A.B. said:Not all Commandos produced between 200976 and 211110 were Combats (Hi-Riders for instance, were not Combats).
From what we know there appear to have been a few Combats with lower serial numbers than 200976.
It's less likely there were many, if any, later than 211110.
Any particular reason for asking?
I could give you a reason why not wanting a Combat:
Combat is the only Commando without a large sump filter so all (metal) dirt will directly flow into the oil pump :cry: Serious design flaw :!:
Jg
nortonspeed said:Ever wondered why Norton re-introduced that sump filter again to the later 750 and all 850 Commandos :wink:
[/quote][/quote]nortonspeed said:Well after some time beyond their release the Combat gained the imputable reputation of oil pump destroyer. Ever wondered why Norton re-introduced that sump filter again to the later 750 and all 850 Commandos :wink:
L.A.B. said:nortonspeed said:Ever wondered why Norton re-introduced that sump filter again to the later 750 and all 850 Commandos :wink:
But, we did this yesterday: between-200976-and-211110-all-combats-t26476.html#p350824
They didn't reintroduce it on the later 750s.
1973 750 crankcase parts
https://andover-norton.co.uk/en/shop-dr ... eter-drive
nortonspeed said:L.A.B. you are almost right however you forgot about the (later) 750 short stroke engined Commandos (I know these engines had in fact 850 cases but still they were 750 Commandos).
auldblue said:maybe there is a perchancity that oil pumps perform better when they have oil to pump rather than run on the dry side , the main bearings also seem to perform to their full potential when lubrication is available 100% of the time. So what's going to go first pump or bearings?