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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Fuel injection timing
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<blockquote data-quote="Tazza" data-source="post: 5363" data-attributes="member: 82"><p>Everything was bored out correctly as to their specs. The old liners were machined out and new liners were pressed in with a step so they can not drop like the old ones did. The piston to bore clerance was checked for each pot too. It was all good in that area as far as i remember. The only thing i didn't check was the piston to head height but i was told it was checked. Everything was taken back to standard size.</p><p>The engine i just did up had less than .008 end gap, i made sure i checked that, it works a treat!! just over 400 PSI of compression, it only takes a 10-15 second glow and it fires rite up, no smoke at all.</p><p>The only thing that could have caused the compression to be lower is when it was *new* i didn't get to give it a good run. It had short runs to move the machine around on flat ground, there was no load on it. I'm thinking the rings may have not seated correctly with the short work. It may have totalled maybee 30 mins of idle time over say 4 months in short bursts.</p><p>There is very little blow-by so i doubt its by-passing the rings.</p><p>I'm not sure what the setting on the FI mark on the balancer is, 24 degrees BTDC sounds about rite. I can check all this easily enough, i will need to work it out so i know how many shims are needed.</p><p>The crackle you mention when opening it up, you mean a good squirt of fuel? or when running?</p></blockquote><p></p>
[QUOTE="Tazza, post: 5363, member: 82"] Everything was bored out correctly as to their specs. The old liners were machined out and new liners were pressed in with a step so they can not drop like the old ones did. The piston to bore clerance was checked for each pot too. It was all good in that area as far as i remember. The only thing i didn't check was the piston to head height but i was told it was checked. Everything was taken back to standard size. The engine i just did up had less than .008 end gap, i made sure i checked that, it works a treat!! just over 400 PSI of compression, it only takes a 10-15 second glow and it fires rite up, no smoke at all. The only thing that could have caused the compression to be lower is when it was *new* i didn't get to give it a good run. It had short runs to move the machine around on flat ground, there was no load on it. I'm thinking the rings may have not seated correctly with the short work. It may have totalled maybee 30 mins of idle time over say 4 months in short bursts. There is very little blow-by so i doubt its by-passing the rings. I'm not sure what the setting on the FI mark on the balancer is, 24 degrees BTDC sounds about rite. I can check all this easily enough, i will need to work it out so i know how many shims are needed. The crackle you mention when opening it up, you mean a good squirt of fuel? or when running? [/QUOTE]
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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Fuel injection timing
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