Mystery Engine

It has been a busy day. First thing was to make a vice holder so I could move it around. I found a old wheel last night and a old pipe I found while cleaning up around here and ap piece of flat.

I then fired the 1075 engine. I had fired it up some while ago but I wanted to make sure it was oiling good and I didn't want to make a mess on my friends floor. I made a mess on my floor so it must be good.

I then started getting the 900 engine ready to fire. I had to install the stator and add oil. I will rob the ignition off of the wrecked bike tofire this one up with.

I had to install a starter on the 900 as the one on it was not spinning the engine very well. This engine has gobs of compression and does not turn over very fast. I turned the engine over by hand and it is smooth.

Here is the cam lobes. Need closer shots?

I'll venture a guess of 260 - 267 range for duration Roy.

If that's at true TDC, the cams are running split centers. Perhaps 106/111 or so.

Setup in a good street motor 1075 or 1197 with some 34 or 36mm carbs and 95+ cfm head....hang on buddy...you're going for a ride

Send me a clean, good head, guides & seals & the cams...wait patiently, toss those BS34's aside and get yourself some real carburetors if you can afford them. I'll take care of you Roy

Larry, Thank you for the kind offer. I just don't know what to do. I need to get the 76 going first thing so I will have a bike to ride.

This LTD engine is still unknown as to what pistons,valve springs,and bottom end. I really need the top end for the 76 A4. Man I hate to tear down a good engine for the cylinders and pistons but this engine is off a 1976 LTD and I would like to sell the frame and engine together.

The cams would work in the 1075.

The head that came off the 76 A4 has two plugs broke off flush and I haven't even looked at it yet. That engine has 10,000 miles.

I always thougt if I won the lottery I would have you build me a engine as thet is the only way I could afford it.

It would probably be best to pull the cams and put them on the shelf and try and get the head lined out.

I fired the LTD engine yesterday. I am going to try and run it today.










Let me think, There is a lot going on around here. Roy

I ran the engine today for about three minutes. I recorded it on video but the sound didn't work !!

I will try and remember the wifes camera and post a vid. Roy

I will start tearing down the 76 A4 for paint and use this engine on it. It is just the easiest way to go. Roy

Since I have a lack of funds I will use the top end off of the 900B engine. I removed the cams and measured them with my cheepo measuring device(20 bucks) and I came up with .460 lift ! I don't need that ! :woohoo:



It is beginning to make me suspect that the pistons might not be stock either. I do doubt that anyone would run stock valve springs either.

Time will tell. Roy

roy-b-boy-b wrote: Since I have a lack of funds I will use the top end off of the 900B engine. I removed the cams and measured them with my cheepo measuring device(20 bucks) and I came up with .460 lift ! I don't need that ! :woohoo:



It is beginning to make me suspect that the pistons might not be stock either. I do doubt that anyone would run stock valve springs either.

Time will tell. Roy

They won't be stock pistons Roy Sounds to me like you have a potential hot rod on your hands A hand full of throttle ought to put some lead in your pencil :woohoo:

LarryC wrote:

roy-b-boy-b wrote: Since I have a lack of funds I will use the top end off of the 900B engine. I removed the cams and measured them with my cheepo measuring device(20 bucks) and I came up with .460 lift ! I don't need that ! :woohoo:



It is beginning to make me suspect that the pistons might not be stock either. I do doubt that anyone would run stock valve springs either.

Time will tell. Roy

They won't be stock pistons Roy Sounds to me like you have a potential hot rod on your hands A hand full of throttle ought to put some lead in your pencil :woohoo:

Or skids in your skivies!! LOL

This engine was used for 300 ft. Dirt drags. Stop light to stop light ? :pinch:

I guess it is a good thing I am tearing it down as there is no telling if it was taken good care of. It was owned by a kawasaki mechanid of the old school. Roy

For those cams to work "reasonably well" in a street ride, the motor needs to be big Roy. Like 1260cc size. They're worth at least $300. Have you seen the price a Web Cams lately :whistle:

Larry, What would the cams and the shim under buckets be worth. I could put the money to better use than killing myself. :blink:

I might get the top end off today. Who knows what I will find. Roy

Copper gaskets. I can't get a good measurment on the cylinder walls. My high dollar electronic measuring device is on the fritz. :pinch:

The best I could guess is 68 or 69 or 70 or 67? :laugh:
I'll have to wait for a fiend to come home to get a measurment.

If interested --

www.harborfreight.com/6-piece-telescoping-gauge-set-5649.html

Good Fortune!