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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
My new ride..an old 720
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<blockquote data-quote="kilohertz" data-source="post: 82012" data-attributes="member: 6974"><p>Hi guys! Happy new year!</p><p>Well it's been a few years since I last updated this thread...and fixed the alt. problem. I just removed the old one and the external regulator and installed a complete GM alt from an 80's vehicle, bolted right in, is self regulated and solved all the problems. Has been running great for a few years now....however..she need some serious engine work.</p><p>It has been running fine now for 3 years, but doing regular tune up yesterday I thought I would check compression, found 3 of them down at about 30-45 psi at crank and the original problem cyl at about 10 psi at crank. This is warm and with throttle wide open. Going to check again today cold, but wow!. It seems to run fine and the original problem cyclinder plug looks like it is running fine, the right 2 cyls seem to be a little oil wet, but still okay. The engine has about 1200 hours since complete rebuild by local Bobcat dealer. It should still be running fine so maybe it's time to remove the heads and see what is going on inside. Just guessing valves but maybe head gasket..shouldn't be rings yet??</p><p>Also thinking, as I am now using this a fair bit, that maybe look into putting a deisel into it. Just thinking out loud. I'm sure it's doable and will search out some options. Would be nice to have a little more snort and torque. would the drivetrain and hydraulic system be up to an little extra power or should I be looking for a newer machine? This one has had all the drive rebuilt and and ois overall in pretty good shape, although the pins/bushings are getting worn and should be replaced.</p><p>Cheers</p><p>Paul</p></blockquote><p></p>
[QUOTE="kilohertz, post: 82012, member: 6974"] Hi guys! Happy new year! Well it's been a few years since I last updated this thread...and fixed the alt. problem. I just removed the old one and the external regulator and installed a complete GM alt from an 80's vehicle, bolted right in, is self regulated and solved all the problems. Has been running great for a few years now....however..she need some serious engine work. It has been running fine now for 3 years, but doing regular tune up yesterday I thought I would check compression, found 3 of them down at about 30-45 psi at crank and the original problem cyl at about 10 psi at crank. This is warm and with throttle wide open. Going to check again today cold, but wow!. It seems to run fine and the original problem cyclinder plug looks like it is running fine, the right 2 cyls seem to be a little oil wet, but still okay. The engine has about 1200 hours since complete rebuild by local Bobcat dealer. It should still be running fine so maybe it's time to remove the heads and see what is going on inside. Just guessing valves but maybe head gasket..shouldn't be rings yet?? Also thinking, as I am now using this a fair bit, that maybe look into putting a deisel into it. Just thinking out loud. I'm sure it's doable and will search out some options. Would be nice to have a little more snort and torque. would the drivetrain and hydraulic system be up to an little extra power or should I be looking for a newer machine? This one has had all the drive rebuilt and and ois overall in pretty good shape, although the pins/bushings are getting worn and should be replaced. Cheers Paul [/QUOTE]
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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
My new ride..an old 720
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