johnboybelfast Posted October 21, 2021 Share Posted October 21, 2021 I have successfully repressurised my k4.6 and shes back to life you must try this for yourselves guys save us all a fortune Quote Link to comment Share on other sites More sharing options...
Nitroholic Posted October 22, 2021 Share Posted October 22, 2021 It works for a bit ..... and is better than binning a tired engine, but it doesn;t remove wear from conrod or piston, or the liner... but if done carefully, will get a bit more life out of a motor. Plus, of course, if you mess it up...well...if your compression was low, and the thing was on its last legs, the alrnative was either a replacement engine...or replacing piston/rod and liner. 1 Quote Link to comment Share on other sites More sharing options...
Grantus Posted October 22, 2021 Share Posted October 22, 2021 Hi mate,this looks interesting!I've got an SH28 engine that has hardly any use from new,I've never cooked it or ragged it. It's got zero pinch now although the liner and piston appear to be mint. Can't return it due to the 'nature of the hobby' , disappointed as hardly used it!Anyway I'm going to try your method,as Nitroholic said there's nothing to lose really. Curious to know if you've had much use out of yours since you've fixed it?Good vid too mate👍, loving the tuneage in the background! 1 Quote Link to comment Share on other sites More sharing options...
johnboybelfast Posted October 22, 2021 Author Share Posted October 22, 2021 Quote Link to comment Share on other sites More sharing options...
johnboybelfast Posted October 22, 2021 Author Share Posted October 22, 2021 Here she is guys great compression even at operating temperature and the rop end is crazy in this thing deffo glad i did it now i know i can get more life out of my moters 😁😁 1 Quote Link to comment Share on other sites More sharing options...
johnboybelfast Posted October 22, 2021 Author Share Posted October 22, 2021 12 hours ago, Nitroholic said: It works for a bit ..... and is better than binning a tired engine, but it doesn;t remove wear from conrod or piston, or the liner... but if done carefully, will get a bit more life out of a motor. Plus, of course, if you mess it up...well...if your compression was low, and the thing was on its last legs, the alrnative was either a replacement engine...or replacing piston/rod and liner. Yes i know all this bro lol the thing it if its done right it will last a good load of gals trust me this thing is banging 👌 Quote Link to comment Share on other sites More sharing options...
locky Posted October 23, 2021 Share Posted October 23, 2021 This maybe a better clamp....https://www.ebay.co.uk/itm/302160614643?hash=item465a2d14f3:g:HoYAAOSww3tY40ne I think the most important part is to slowly tighten and rotate the cylinder in small increments, always checking with the amount of new pinch by sliding up the piston. Let us know how it performs after a few more tanks of bashing. 1 Quote Link to comment Share on other sites More sharing options...
johnboybelfast Posted October 23, 2021 Author Share Posted October 23, 2021 Yes nps iam deffo going to get a proper tool for pinching that all i could get at that time but therr are come good split coller tools out there 😀 Quote Link to comment Share on other sites More sharing options...
Nitroholic Posted October 23, 2021 Share Posted October 23, 2021 (edited) split collet tools ...fancy 🙂 I remember a time, not that long ago...where re-pinching was done with jubilee clips and a gas burner. How that ever worked well enough to be worth doing, I do not know. You cannot ever get even pressure with a thing designed to clamp a hose! At least that youtuber was using a clamp with an actual near circular clamping device. Edited October 23, 2021 by Nitroholic Quote Link to comment Share on other sites More sharing options...
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