Tameni made PM Tuning crank, 107mm rod failure issue....

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
dansacred
registered user
Posts: 65
Joined: Mon Jan 20, 2014 10:46 am
Main scooter: li 150 series 3
Contact:

so the 60x110 tameni that just got delivered should be ok? "pray"
tavspeed
registered user
Posts: 243
Joined: Mon Jan 12, 2009 8:58 pm
Contact:

running a mec 60mm crank in my rapido 230,with the silver rod anyone had a failure with these or is it the copper coloured rods the dodgy ones.
User avatar
diesel
registered user
Posts: 201
Joined: Sat Jan 14, 2012 4:43 pm
Playstation gamer tag: speilekorps
Main scooter: lambretta li 150 s1 1958
Contact:

What is it about them that's failing? are they snapping at the small end? is the big end bearing going? I'm assuming that the distortion in the picture occurred post-failure when the rod was pushed through the casing or something,so where is the initial fault manifesting itself?
User avatar
drunkmunkey6969
Moderator
Posts: 2838
Joined: Sun Jan 04, 2009 1:42 pm
Main scooter: '69 Lambretta GP
Location: North Yorkshire
Contact:

'Gold/Bronze' style rods, on Tameni made cranks (MEC etc) snapping just below the little end eye hole and wiping our engines......
See our YouTube scooter channel for Tech-help: https://www.youtube.com/c/TheScooterFactory/videos
lammy57
registered user
Posts: 29
Joined: Thu Apr 16, 2009 9:13 pm
Contact:

b@11@x got one in my gt 200 kit mind you been in close to 2000 miles should be ok? :evil:
lammy57
registered user
Posts: 29
Joined: Thu Apr 16, 2009 9:13 pm
Contact:

Now I could not sleep last night thinking should I change the crank or not! I have a run booked for Belgium soon and it is playing on my mind ffs more sleepless nights! whats your thoughts?
goldeneye
registered user
Posts: 1037
Joined: Wed Apr 01, 2009 2:28 pm
Contact:

silver rodded MECUR with black webs in mine, 7 years no problems. had two AF cranks (one a race crank, one a rebuilt indian with uprated bearing) fail on me , the race crank I put down to high milage, the second went after 46 miles of running in, big end seized solid. both happened at low speed, 40-ish miles an hour, and low revs.
User avatar
drunkmunkey6969
Moderator
Posts: 2838
Joined: Sun Jan 04, 2009 1:42 pm
Main scooter: '69 Lambretta GP
Location: North Yorkshire
Contact:

My personal experience with regard to this thread is on the 'gold/bronze' type rods, 107mm length, of recent manufacture by Tameni, for PM Tuning, MEC and others.

It would be fair to say older MEC cranks were OK.....we used them a lot, no problems.

It's the more recent batches which are going tits up, so if you have one that's been in for a while and done thousands of miles I shouldn't worry.
See our YouTube scooter channel for Tech-help: https://www.youtube.com/c/TheScooterFactory/videos
User avatar
nsaints
registered user
Posts: 24
Joined: Fri Oct 11, 2013 8:08 am
Contact:

Looks like I need to be in the 'worried camp' - black web's, bronze coloured rod, 107, bought in the last 12 months...No idea if it's a Tameni made crank or not
Any thoughts on a safe power output assuming the worst and I defo have one of these cranks

Have the failures been seen only on +25 BHP engine's?

FYI - I'm running a GT186, PHBL 25mm, Clubman
User avatar
Architecten
registered user
Posts: 106
Joined: Tue Apr 29, 2014 1:10 pm
Main scooter: Allwyn Pushpak GP125 (RT200)
Location: Wirral
Contact:

So are we saying the 110mm conrod on the MEC crank is ok?
Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: No registered users and 6 guests