748 bottom end?

Discussion in 'Technical Help' started by Clarkyboy, Jul 4, 2013.

  1. Hi All,

    After recently fixing my electrical problems with new reg/rect, main relay and some new heatproof wires, I tidied everything up, put all the bits back on and treated the 748 to a new battery,

    Finished up with all this last night and seeing it was nice I thought there was nothing more to do than go for a blast.... which ended in a 3 mile walk, 1 of which was pushing the bike!

    before I left the house the last thing I did was check the fluid levels etc, all were good, and the last oil change I did was probably little over 1000 miles, and seeing as I have/had a trackday coming up I thought I would do a service before that, changing the oil, filter, brake fluid etc (all stuff I have waiting in the shed ready to use!)

    anyway, cutting to the chase, took the bike for a spirited run, it was going great, plenty of pull, water temp good, no oil light etc. after about 35 mins of riding I cam into a nice string of corners, down a hill, :frown: cracked the throttle open, bike felt like it was choking, oil light started flickering, I shut the throttle down, then the oil light came on solid, I then flicked the switch and killed the bike,

    pushed it about a mile to my mates house then walked a further 2 miles in my leathers (as he wasn't in) to a main road for someone to pick me up :-( I was bloody sweating!

    Im guessing the bottom end has gone, but any suggestions would be welcome, im going to pick the bike up tonight and drop the oil, which I fully expect to be full of metal :-(

    the bike only has 14,500 miles on it, 2k of which has been myself, I have done 3 oil/filter changes in that time, 1 when I got it, 1 before a trackday and one after a trackday.

    when I got the bike it was losing oil, which I discovered was because the oil filter was not tight when I bought it... so im guessing its had oil starvation in the past and this is the result finally happening!?

    Gutted. truly Gutted.
     
  2. Only way to find out is to drop the oil i would guess.

    It would seem from what you say the engine didn't seize completely.
     
  3. yeah, will get it home and drop the oil/filter and sludge filter tonight,

    Still runs, and sounds OK, so with a bit of luck... just shells?

    I have heard the cranks are pretty darn solid, but we will see...

    if anyone has any experience or had a similar problem any advice is welcome!

    I will post up tomorrow on my findings!
     
  4. The problem could be the oil galley plug has worked its way out. Someone had a complete seizure with this on this very site a few weeks back.

    It should be fairly obvious if this is the case by the swarf in the oil.
     
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