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Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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11-27-2015, 08:32 PM | #11 | |
Gone Wild
Join Date: Jun 2012
Location: Spicewood, TX
Posts: 219
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Re: Calling All G1 Experts
Quote:
Believe me I was really impressed with the engine you built for Boke, but I'm not sure what I would do with one that fantastic. Being a G1 owner, I don't think I would like to try to turn Boke's engine backward for reverse. LOL Ogre BTW, I forgot to mention Dave (smallblock) when naming those who have being so helpful to me. |
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11-29-2015, 06:46 PM | #12 |
Vegas modded 420
Join Date: Jun 2009
Location: West MI
Posts: 15,433
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Re: Calling All G1 Experts
That is wear on the exhaust pipe header, sleds do the same thing. You can try to braze it up or something, you can buy new headers to weld onto the pipe that is the correct way to fix them. Make sure its done usually tacked on the motor so the alignment is right. Its just expanded exhaust pipe.
Get a $5 spark checker at autozone/etc, they are cheap and easy to check spark that way. The G1 use a double pickup one forward one reverse, as the timing must be advanced each direction. The double solenoids just spin the gen the right direction one is for forward the other reverse. It could have any issue, like bad crank seals, broken piston, bad reeds, no compression, ignition issue, hard to say. |
11-29-2015, 06:51 PM | #13 |
Gone Wild
Join Date: Oct 2010
Posts: 6,730
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Re: Calling All G1 Experts
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11-29-2015, 08:57 PM | #14 |
Vegas modded 420
Join Date: Jun 2009
Location: West MI
Posts: 15,433
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Re: Calling All G1 Experts
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12-05-2015, 04:42 PM | #15 |
Gone Wild
Join Date: Jun 2012
Location: Spicewood, TX
Posts: 219
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Update
BTW, thanks for helping me pull my head out sho305. I have two Pontiac Lemans 350CI cars in various stages of tear down/repair in my garage, so I have just about one of every tool known to mankind ... at least that's what my wife tells me. I have a spark tester, but I had to dig though a couple of drawers to find it.
Spark is ok, so I'm back to compression, which I suspected before. I've got the engine out and it rotates with ease, i.e., no compression when turning it by hand. Looks like a ring job (or maybe more). I see a couple of rebuild kits like the ones on Everything Carts: Rebuild kit. Are most kits the same from our board sponsors, or do y'all recommend a specific one? I haven't pulled the head and cylinder yet to do some measuring so I can tell how mine measures up to the specs in the manual. So before I order, I'm gonna do that, but any recommendations from somebody who's done a G1 overhaul? Thanks again for the input, guys. Ogre |
12-05-2015, 04:52 PM | #16 |
Sometime's............
Join Date: Oct 2007
Location: Tacoma Washington
Posts: 11,868
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Re: Calling All G1 Experts
OEM rings/gaskets and cranks seals come to mind. You only want to do this job once...right?
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12-05-2015, 05:21 PM | #17 |
Gone Wild
Join Date: Oct 2010
Posts: 6,730
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Re: Calling All G1 Experts
You can't really estimate the compression of a G1 by turning the motor by hand. You should use a compression tester and crank the motor with the starter generator and the carb at WOT. Earlier you said that you had very little compression until you added some oil to the cylinder. How much compression was there before you added oil?
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12-05-2015, 05:43 PM | #18 | ||
Gone Wild
Join Date: Jun 2012
Location: Spicewood, TX
Posts: 219
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Re: Calling All G1 Experts
Quote:
Quote:
Where do you get the OEM stuff, Dave? Ogre |
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12-05-2015, 05:48 PM | #19 |
Gone Wild
Join Date: Oct 2010
Posts: 6,730
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Re: Calling All G1 Experts
If you have that little compression, I would imagine that your rings are not just worn, they are gone. Pull the jug and see what's up before you invest a lot of time in trying to figure out where to get the parts you're not sure that you need.
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12-05-2015, 06:25 PM | #20 | |
Gone Wild
Join Date: Jun 2012
Location: Spicewood, TX
Posts: 219
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Re: Calling All G1 Experts
Quote:
As far as the worn tailpipe/muffler, I got a tail pipe reducer w/2" ID to 1.5" ID that is almost exactly the measurements I need. (note: I've got a tail pipe expander tool, also) Correct me if I am wrong, but after inspecting the muffler, it appears that outer shell is just to hold the assembly in place, and the actual sealing is where the hard interior tailpipe meets the exhaust flange and is held tight via the springs. If I am right it will make the repair fairly easy. I'll get to it sometime next week. Thanks again to all ... Ogre |
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