Money shift., Help me figure this out. |
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Money shift., Help me figure this out. |
ottox914 |
Jun 4 2014, 10:09 PM
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#1
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The glory that once was. Group: Members Posts: 1,302 Joined: 15-December 03 From: Mahtomedi, MN Member No.: 1,438 Region Association: Upper MidWest |
A friend of mine, whom I would trust with my life or my wife, was taking the 914 for a little test beating with me the other day. At about 7k rpm and 15 psi he money shifted me from 3rd to 2nd. He WAS very quick to throw the clutch back in, but...
I now need a new fan belt, as the OEM one was thrown and is slightly mangled at present. More concerning, is the noise it makes now. It isn't the 1 in 4 cycle "thump, thump" of a rod bearing. I can pull plug wires and rev it up and the sound remains. Its more of a tic-tic-tic-tic-tic thing. Due to the speed of the tic tic tic and that it goes up and down with rpm, I'm thinking valves. Not that i really want to think that. Any other thoughts or trouble shooting to be tried that anyone else can think of? I'm thinking to start with compression test, move to leakdown, and submit some of the oil for testing of metallic ick. I can do the compression test and send in the oil, but I don't have the tools for the leakdow. |
ottox914 |
Sep 14 2014, 07:06 PM
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#2
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The glory that once was. Group: Members Posts: 1,302 Joined: 15-December 03 From: Mahtomedi, MN Member No.: 1,438 Region Association: Upper MidWest |
Onward with the auto-topsy. Heads will be on the way to Len the head-master who built them for me. From pics, he was hopeful, but we'll have to see what the Head Doctor has to say once he has metal on his operating table. I saved the oil and took a closer look. I drained off 90% of what was in the pan, and swirled the balance around like a gold prospector. Sadly, if all the shiny bits I saw in the bottom of the pan were gold and not copper, I'd have plenty of funding for the replacement motor. But alas, that much copper is bad 2x. Its not gold, and it tells me the bearings are likely toast. I can only hope the case, crank, and rods can be saved. Have a busy couple weeks coming up with work and house projects, so it'll be awhile till I can get the case split. I'll know more then.
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