help diagnosing a minor issue - popping sensation in left pedal

[HIGHL4NDER]

I'm somewhat ashamed to say I haven't ever really made the effort to learn a lot of bike maintenance skills, better late than never I guess!

As the title suggests I'm experiencing a "popping" sensation, like someone lightly tapping the sole of my shoe with a hammer at the top of each pedal stroke. Always at the top and only on the left foot. It is not particularly audible, more sensation than anything, but it feels like it is becoming more pronounced.

I've had bottom bracket issues with past bikes and that always felt like both pedals were affected, so would I be correct in thinking this is either the pedal or the left crank arm not being tight? It's DMR V6 pedals, which are the first pedals I've ever had without traditional bearings. Not sure if they could be the source.

Any tips on what to check/how? I don't have a great collection of tools although I'm gradually adding them, so I'm thinking a pedal wrench is prob on the list! Anything else I might need?

Any links to website or video are just as appreciated as direct advice

Thanks,
Al.

 

[paquo]

i think you are on the right track with either pedal or crank arm. I had that on my regular bike and fortunately i had spare pedals and crank arms from another bike to narrow it down to the arm which was still under warranty. In my case it was not under tightened but the insert where the pedal screws in was tweaked

 

[Zimmerframe]

Do you still have your original pedals so you can try them quickly ?? It helps rule things out.

 

[HIGHL4NDER]

I need to grab a suitable wrench first I do have a set of pedals there in the spares box so I'll try them once I have a tool. probably tomorrow morning

 

[mark.ai]

I've had something similar at the bottom of the pedal stroke and only under load (I couldn't reproduce rotating by hand) - it turned out to be the bolt for one crank arm had slightly loosened and was allowing that crank arm to move very minutely.

 

[Mikerb]

I think the v6 DMRs have a greasing port so they can be serviced.

 

[HIGHL4NDER]

the V8s on my other bike do and came with a greasing syringe. Don't think the V6s do, but will check later. (also might swap my old V8s over anyway, love them )