Thanks Mark No rebuilds , they are engines I picked up with my Ohio projects . I don't know the history on them but will give them a good look over before doing anything with them. l appreciate your details about oil etc. I am certainly looking forward to the gathering. Bob R ----- Original Message ----- From: Mark Langford via KRnet <krnet@list.krnet.org> To: KRnet <krnet@list.krnet.org> Cc: Mark Langford <m...@n56ml.com> Sent: Thu, 15 Jun 2017 14:05:58 -0400 (EDT) Subject: Re: KR> engine start
Bob Russell wrote: > I am wanting to start some vw conversions that I have and was wondering if anyone has been able to start them without a prop on. > I could put one on but since we are having quite a bit of rain, I > was thinking of doing it in my hangar. > It seems to me that it should run as there is a flywheel( and I will put a fan in front to cool). I've gotten in the habit of setting the timing without the prop on my VW. There's a lot less drama, and the timing is far easier to nail down perfectly when there's not a 100 mph wind blowing everything around. This probably doesn't work if you have a vacuum advance though, which you shouldn't. And obviously, don't run it for more than a couple of minutes. It won't heat up too much in two minutes. I have a lightened flywheel on the back also, so running it for a few minutes without a prop doesn't concern me. The risk is that if you start it, you'd better make sure it's not going to hit 6000 rpm instantly...definitely start with throttle barely cracked, because there's no load on it at all. Another thing I've learned with mine is that priming it with oil is not easy, if it's a fresh rebuild. I've learned to lube the oil pump gears with thicker grease that improves the seal between gears and housing, put a little extra oil in it, and leave it sitting with the tail up in the air overnight to make sure the oil is available to the pump. Then I backfill with more oil through the oil pressure sensor hole (near the distributor) to fill that oil passage up, and hopefully put more oil into the pump. Then I fill that NPT hole with a mechanical oil temp gauge and spin the engine over with the starter with all plugs removed and spark plugs removed but still connected to plug wires, and grounded (laid across the cylinders as a ground), so I can check spark at the same time). Contrast this with the Corvair, where you simply fill the engine with oil, use the distributor drive gear to spin the pump up for a few seconds until you hear oil splashing all around the engine, reinstall the distributor, and fire it up! Mark Langford m...@n56ml.com http://www.n56ml.com _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
