My R1 ate its engine
Discussion
Hello,
Week ago my bike started making a horrible noise.
I stopped and pushed it the last 2 miles to work.
finally got it recovered.
Tried starting it and it sounded like a diesel (Or no oil)
Drained the oil, less came out than I expected but it was in the sight glass correctly when I checked before draining.
No metal came out with it.
Took the clutch cover off (Clutch is a weak point) no issue there.
So, whats the next step? Sounds like valves hitting pistons but I can't get to the engine to look without dropping it out of the frame...
Week ago my bike started making a horrible noise.
I stopped and pushed it the last 2 miles to work.
finally got it recovered.
Tried starting it and it sounded like a diesel (Or no oil)
Drained the oil, less came out than I expected but it was in the sight glass correctly when I checked before draining.
No metal came out with it.
Took the clutch cover off (Clutch is a weak point) no issue there.
So, whats the next step? Sounds like valves hitting pistons but I can't get to the engine to look without dropping it out of the frame...
AndyDRZ said:
Hello,
So, whats the next step? Sounds like valves hitting pistons but I can't get to the engine to look without dropping it out of the frame...
If it was valves hitting pistons it would surely not ne running by now.So, whats the next step? Sounds like valves hitting pistons but I can't get to the engine to look without dropping it out of the frame...
Not a mechanic , but i would have a look at a few options before i pulled a motor out
Are you sure it was running on all 4 , Have the plugs out first if i were you and have a look at their state.
If theres big problems in the top end the plugs will have additional material on them .
Whilst I agree dropping the engine out isn't ideal, most fixes would involve the engine needing to be dropped anyway...
I've taken 1 plug out and it was fine, will take the rest out tonight (PITA due to frame brace beign in the way. Seriously, dropping the engine would be quicker than taking the plug out!)
My 7R ran on 3 for a while so I know what that sounds like, this was definately more metallic.
ON a note about Oil:
There is a pipe that goes into the airbox and another pipe that comes out and goes to nowhere (Like an overflow pipe) Where these pipes go into/out of the airbox, there is a coating of oil on the inside and outside of the airbox.
Anyone know what the hell this is for? Looks like it would spray vaporised oil into the carbs??? Didn't realise the R1 was a 2stroke!
I've taken 1 plug out and it was fine, will take the rest out tonight (PITA due to frame brace beign in the way. Seriously, dropping the engine would be quicker than taking the plug out!)
My 7R ran on 3 for a while so I know what that sounds like, this was definately more metallic.
ON a note about Oil:
There is a pipe that goes into the airbox and another pipe that comes out and goes to nowhere (Like an overflow pipe) Where these pipes go into/out of the airbox, there is a coating of oil on the inside and outside of the airbox.
Anyone know what the hell this is for? Looks like it would spray vaporised oil into the carbs??? Didn't realise the R1 was a 2stroke!
AndyDRZ said:
Whilst I agree dropping the engine out isn't ideal, most fixes would involve the engine needing to be dropped anyway...
I've taken 1 plug out and it was fine, will take the rest out tonight (PITA due to frame brace beign in the way. Seriously, dropping the engine would be quicker than taking the plug out!)
My 7R ran on 3 for a while so I know what that sounds like, this was definately more metallic.
ON a note about Oil:
There is a pipe that goes into the airbox and another pipe that comes out and goes to nowhere (Like an overflow pipe) Where these pipes go into/out of the airbox, there is a coating of oil on the inside and outside of the airbox.
Anyone know what the hell this is for? Looks like it would spray vaporised oil into the carbs??? Didn't realise the R1 was a 2stroke!
crankcase breathersI've taken 1 plug out and it was fine, will take the rest out tonight (PITA due to frame brace beign in the way. Seriously, dropping the engine would be quicker than taking the plug out!)
My 7R ran on 3 for a while so I know what that sounds like, this was definately more metallic.
ON a note about Oil:
There is a pipe that goes into the airbox and another pipe that comes out and goes to nowhere (Like an overflow pipe) Where these pipes go into/out of the airbox, there is a coating of oil on the inside and outside of the airbox.
Anyone know what the hell this is for? Looks like it would spray vaporised oil into the carbs??? Didn't realise the R1 was a 2stroke!
AndyDRZ said:
Thank you...
With that in mind:
So, as there seems to be an excessive amount of oil, would that be an indication of the standard oil pathways being blocked meaning the oil had to escape out the breather pipes meaning something firther down the line would have been starved of oil.
there will be a fair bit of oil there wouldnt worry about that for now,With that in mind:
So, as there seems to be an excessive amount of oil, would that be an indication of the standard oil pathways being blocked meaning the oil had to escape out the breather pipes meaning something firther down the line would have been starved of oil.
can the timing be checked with the engine in on a r1? if so do that
If theres excessive oil being blown out the breather into the airbox (description sound like it is) then it usually means crankcase is pressurising more than normal. Might have holed a piston or broke some rings? did it get over revved b4 it broke?
Best bet is get a compression test of all the cylinders, check results against a workshop manual if there is one .
hth
Best bet is get a compression test of all the cylinders, check results against a workshop manual if there is one .
hth
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