Thursday, 7 May 2020

Cleaning the carburettor on a Tohatsu four stroke 3.5 hp outboard engine

I will post a video and more photographs of the process but suffice to say it was going so well. Carburettor had been extracted without incident. I'd managed to remove the float. I had stuck wire through holes, used carb cleaner spray. 






Problems started when I couldn't remove the main jet - it just wouldn't budge and I almost stripped the screwdriver slot. I have no idea how to get that out. I wonder if I just leave it in a bowl of carb cleaner overnight and maybe that will clear it? If anyone knows a solution to getting this jet to move, please let me know. 

The carburettor was cleaner than I expected - no evidence of gumming  so that's a good point.

So where did the disaster happen? On the very last turn of the right hand bolt as I tightened it back onto the inlet manifold.



The bolt sheared off!
Bugger......as they say..........


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2 comments:

  1. Steve-the-Wargamer8 May 2020 at 16:23

    Gah...

    ReplyDelete
  2. steve8 May 2020 at 18:32

    Literally, the very last thing on the engine this year - the last tightening of the last bolt and I would have completed my very own service for the first time and discovered a major fault. The very last half turn...............gutting does not do adequate justice to the emotions felt!

    ReplyDelete

Thanks for taking a look at my blog. All comments and advice are welcome - drop me a few lines. You can always find videos about Arwen at www.youtube.com/c/plymouthwelshboy. Look forward to hearing from you.
Steve