Category Archives: For Sale Elden MK10C, AM73-79

Elden MK10C For sale

Elden MK 10C Makes it Debut at NAPA Speedway, Albuquerque, NM

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Progress continues.  The Elden MK10C was loaded into the trailer for a debut run at NAPA Speedway.  http://www.napaspeedway.com

The day was nice about 47deg and no wind which for us is quite nice for December.  Ran the car in the paddock to try and bed in brake pads and build in heat into the engine.  This is the first time the car has moved under its own power in over 16 years.

The Hewland works well, brakes not so much, and engine felt good.  For some reason the brake pad is soft even after several rounds of bleeding.  After many laps pulled in and found several minor oil leaks and a good portion of oil into the overflow that looked like it had water in it.  Oh Sh…  Assume it is a head gasket so put the car away.

Pulled the head the next day and a head gasket isn’t the major issue but did find more corrosion in the head and block.  Remember I didn’t rebuild the engine from when it was brought home.  The engine had started and ran so we flushed the systems and put it on the back burner.  Guess that was wrong.  So the head and block are at Santa Fe Auto Machine in Santa Fe, NM for head rebuild and block cleaning.

Back to the shop and Happy Holidays to everyone.

3-4-2012 Update Fuel Cell for the MK10C

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Good Morning. Well the last few weeks have been busy on non-race car projects.
On Friday I received the custom fuel cell from Jim Harmon at Harmon Racing Cells: http://harmonracingcells.com. I have attached pictures of the design and final delivered cell. Later in the week I will swap cars in the shop and take pictures in the location behind the driver in the MK10C. Note: Everyone should check their own dimensions before ordering.Elden Mk 10 Fuel Cell Design  Harmon Racing Cell Design

I can’t wait for this next step. Good Luck on your project.

Work completed on MK10C

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Well it has been a busy few weeks and not all on the Elden’s.  But to catch up:

Received aluminum pipes made by HamFab Inc in Edgewood NM.  These are replacing the numerous rubber hoses and connectors that convert 1 1/4″ pipe to 1 1/2″ radiator plumbing.  Doing this required modifying the header/collector tank.  I am still not happy with the way this came out so look for more work on this topic.

Since the radiator plumbing has hit an interim step I wanted to start the engine to do leak down/compression tests, etc.  Well that didn’t go so well.  I thought I had solved the oil prime problem. When starting the engine for the first time in 16 years, rotating the engine over with the starter and plugs out to build oil pressure, was very slow.  Many minutes of cranking before we had oil pressure.  Found some air leaks in the suction side plumbing from the oil pan to the 5 port pump.  This did not correct the problem as I had though/wished. Could not get a good prime and once the pressure bled off then couldn’t get it back.

So we pulled the engine and transaxle to remove the Cosworth 5 port pump.  Disassembled the pump and found some scoring on the suction rotors.  Talked with Curtis Farley at Farley engines an I believe the problems are as follows: 1) pump maybe a bit weak with rotor scoring and maybe some wear on the rotors.  Sent to Farley Engines for a rebuild.  2) this engine had 1/2″ID oil suction lines want 5/8″ at a minimum.  3) the oil line from the bottom of the oil tank to the pump was originally routed up and over the pump instead taking a low route up to the pump. This doesn’t allow an oil “head” to be seen by the pump and if there is pressure and the engine shuts off an air bubble would likely form creating a problem again.  Solution to re-route all lines to ensure the pump see’s the oil level in the oil tank and increase to a min of 5/8″ oil line.

So while I wait for the oil pump to be rebuilt, I will return to the re-plumbing and back to the battery box cover.

First vintage race will be Deming NM, March 30 April 1st.  Need to get the non-vintage (we are welcome to run in our own group)1987 Van Diemen Formula Continental ready.  So back to the shop.