Lazair II

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Postby uscgairdale » Sat Jul 22, 2006 9:02 pm

Does anyone know what make and model it is? I think that it's a Dellroto, they were what was used on the 30 HP version.



This is an OVC type carb that Dellorto specially machined and modified for the KFM. They were standard on all of the 30HP 107e Maxi engines. My engines are the 25HP version, on which the OVC's were optional. They are supposed to have a slight fuel consumption advantage over the Mikuni pmper carbs.

I got the engine to run today without becoming fuel starved. I bought some fuel pump rebuild kits and changed them out. There was no change. I took the carb and manifold assembly off to check the "impuse port" from the engine to the fuel pump and found that it was clogged. I cleared it up and she runs nice and smooth.

Dave
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Postby uscgairdale » Sat Jul 22, 2006 9:05 pm

I was fortunate to get these pump rebuild kits.
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Postby uscgairdale » Sat Jul 22, 2006 9:07 pm

Here's the pump after the rebuild.
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Postby uscgairdale » Sat Jul 22, 2006 9:11 pm

If any of the KFM guys out there ever need some info, I've got all the manuals now.
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Postby uscgairdale » Sat Aug 26, 2006 6:39 am

Check out the difference in spark plugs. The BMP7A plugs are what the engine calls for and the B10HV is what it had in it when I got it. The reach of the plugs is diffenent and there is a huge difference in the heat range.

Dave
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Postby uscgairdale » Sat Aug 26, 2006 6:45 am

I haven't made as much progress as I would like over the past few weeks, but I did cover the right tail. I should get the left side done today. I am very happy with how it turned out. Well, other than the white Tedlar tape.

Dave
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Postby uscgairdale » Tue Oct 10, 2006 9:09 pm

I now have both wings here at my house.
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Postby uscgairdale » Tue Oct 10, 2006 9:16 pm

I've been trying to decide wether or not I was going to open up the D-cells on my wings for an inspection. I broke down today and boy am I glad that I did. I found that almost all of the ribs were loose and what glue that was there was extremely brittle and completely worthless.

Check out these pictures....FYI, these wings passed the "D-cell Squeeze Test" to my satisfaction, but obviously are not ok.

Dave
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Postby uscgairdale » Tue Oct 10, 2006 9:19 pm

I took them out to give everything a good cleaning. Now to get more glue and rivet it back together.

Dave
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Postby flyalaz » Wed Oct 11, 2006 9:20 am

Nice clean work on your plane! A long process but you'll have a great looking machine when you're done.

I was looking at the "after" picture of your wheel and brake assembly and was wondering if that setup is what was offered as the series 2 brake add-on? The company offered that as a kit at one time, but there is no copy of it in the files, and I guess nobody has that mod installed on their plane.

I am pretty sure that arrangement would work on a series 2, and was wondering if you had any other pictures from different angles showing a few more details?

Cheers,
Karl
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