b40rt Posted May 6, 2016 Report Share Posted May 6, 2016 Is it a petrol screw or air screw carb ? Your wasting your time if its an air screw. (from personal experience) Quote Link to comment Share on other sites More sharing options...
strugglinon Posted May 6, 2016 Author Report Share Posted May 6, 2016 b40rt, It's an air screw. I'm lost here Quote Link to comment Share on other sites More sharing options...
strugglinon Posted May 6, 2016 Author Report Share Posted May 6, 2016 Does anyone have a diagram of the PBHB 26 carb? I can't locate this second pilot jet. Quote Link to comment Share on other sites More sharing options...
pschrauber Posted May 6, 2016 Report Share Posted May 6, 2016 (edited) I believe, (not sure) the previous poster are reffering to this little item, that is located inside: (at the photo it is the jet on the top: The parts diagram is here, but be very careful by reading, as then PHBH can be fittet in many different ways; - with air screw or with fuel mixture screw, - with the idle jet inside (as shown above) and sits at the top towards the carb bore or with the 5mm idle Jet that's located at the bottom, - also different chokes, bowls, ... http://www.thisoldtractor.com/mg_images/dellorto_carb_diagram_phbh_page_1.jpg Edited May 6, 2016 by pschrauber 1 Quote Link to comment Share on other sites More sharing options...
b40rt Posted May 6, 2016 Report Share Posted May 6, 2016 b40rt, It's an air screw. I'm lost here Fuel screw is nearest cylinder/inlet, air screw is nearest air filter. The air screw carb can be a pain in the ass. 1 Quote Link to comment Share on other sites More sharing options...
strugglinon Posted May 6, 2016 Author Report Share Posted May 6, 2016 b40rt, That makes it a pain in the ass then. Quote Link to comment Share on other sites More sharing options...
strugglinon Posted May 7, 2016 Author Report Share Posted May 7, 2016 Well, it's just interesting. Pulled the disc valve apart tonight and oh dear, oh deary me! Quote Link to comment Share on other sites More sharing options...
lineaway Posted May 7, 2016 Report Share Posted May 7, 2016 Poof! Quote Link to comment Share on other sites More sharing options...
strugglinon Posted May 7, 2016 Author Report Share Posted May 7, 2016 Er....pardon? Quote Link to comment Share on other sites More sharing options...
strugglinon Posted May 8, 2016 Author Report Share Posted May 8, 2016 I'm thinking, well it's knackered anyway so I might as well try a chemical metal, dremel and a rubbing block. Nothing to lose really? Any ideas? Quote Link to comment Share on other sites More sharing options...
pschrauber Posted May 8, 2016 Report Share Posted May 8, 2016 You might get a donor engine case in any case a new disc. I wouldn't try using knead metal JB-weld or similar stuff as through vibration a part of the repaired spots can get loose and the output would be similar to what you have now. Engines do show up here and there ask the community here look at LeBonCoin in France, Kiiji and Subito in Italy. (Had a likewise problem with my TR so needed too the basement which I found for good price in Italy). Quote Link to comment Share on other sites More sharing options...
b40rt Posted May 8, 2016 Report Share Posted May 8, 2016 Where are you ? Quote Link to comment Share on other sites More sharing options...
strugglinon Posted May 8, 2016 Author Report Share Posted May 8, 2016 I'm in Cumbria b40rt I may as well give it a try pschrauber before I try to buy new cases. Could be interesting? Quote Link to comment Share on other sites More sharing options...
b40rt Posted May 8, 2016 Report Share Posted May 8, 2016 Defiantly have some climber cases, will check condition if your interested ? I'm in Edinburgh. 1 Quote Link to comment Share on other sites More sharing options...
strugglinon Posted May 8, 2016 Author Report Share Posted May 8, 2016 Yeah man, have a look. Cheers 1 Quote Link to comment Share on other sites More sharing options...
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