• Welcome to the forum website of the Vincent H.R.D. Owners Club.

    Should you have any questions relating to the Vincent H.R.D. Owners Club, or Vincent H.R.D. motorcycles in general, please contact Graham Smith, Online Forum Webmaster by calling 07977 001 025 or please CLICK HERE.

    You are unrecognised, and therefore, only have VERY restricted access to the many features of this forum website.

    If you have previously registered to use this forum website, you should log in now. CLICK HERE.

    If you have never registered to use this forum website before, please CLICK HERE.

When a big-end failure and locked-up engine is good luck.

riptragle1953

Well Known and Active Forum Website User
Non-VOC Member
Another story... pictures of the prototype I will provide when I can post a proper picture.
I was building a special special, a once in a life-time job where the owner said: go nuts.... build me the best.... cost is no object! Hey, Mike. ya waana paint a chapel ceiling?
I built a big end, the main structure was a super strong Russian Titanium developed by them for subs and aerospace. This to offset the added weight of the Carrillo rods with heaver big ends.
The big end was designed to distribute the oil evenly to both rods. A sealed feed quill was used.
When the machine was ready for testing i took it out and rode it quite a bit. All was well. One day after putting some miles on it I wrung it out a little more.... oh, maybe 90 or so. I was doing about
80 on a downhill two laner that ended at a T intersection where I had to wait at idle before turning left. While idling the engine locked solid!
I still get the shakes thinking what would have become of me and the bike a mile back.
Later, upon disassembly and inspection, I found that the steel bearing retainers had totally collapsed causing the big-end rollers to run amok.
I rebuilt the assembly building bearing cages right out of "Tuning For Speed" from some super-duper alloy (I forget the number) and had them ceramic coated. End of problem.
 
Warning! This thread is more than 10yrs ago old.
It's likely that no further discussion is required, in which case we recommend starting a new thread. If however you feel your response is required you can still do so.

Top