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Mar 14, 2021 20:16:33 GMT
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My dad had an electric one in parallel with the engine mounted one on his scimitar, his aim was to imorove starting but he found it worked well when the engine was running as well (he kept both as he had a distrust of anything electronic). Yeah, same principle applies here.  Put a tee in at the manifold and set the idle mixture and speed, and tweaked the timing a touch to match. Runs better now. Doesn't pop and bang on overrun either. Phil |
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Mar 14, 2021 21:41:20 GMT
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Here's food for thought.
I was taught that, in general, if everything else is in good working order, setting the ignition timing at idle for just before the peak rising side of engine RPM is a good baseline for getting the timing correct for best performance.
Any truth in that claim?
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Last Edit: Mar 14, 2021 21:41:41 GMT by PhilA
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jamesd1972
Club Retro Rides Member
Posts: 2,922 
Club RR Member Number: 40
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1951 Pontiac Chieftainjamesd1972
@jamesd1972
Club Retro Rides Member 40
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Mar 14, 2021 21:46:12 GMT
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Used to set Mini’s like that as a quick and dirty and when checked was always pretty close
James
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Mar 14, 2021 21:52:42 GMT
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Used to set Mini’s like that as a quick and dirty and when checked was always pretty close James Yeah, I was figuring that the slow burn from the L head design is probably good enough to set by ear and feel alone. I would love to set it up on a dyno though. Phil |
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Mar 14, 2021 22:49:55 GMT
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I had a thought. What does a dynamometer do? Well, it loads the engine up against the wheels.
Ok, so being as I have an automatic gearbox with a fluid coupling, I can do the same to a degree. So, with the stall speed of the fluid coupling known (approx 1500rpm) I had my wife hard on the brakes then flat to the floor on the gas. I then quickly adjusted the ignition for peak RPM and had her shut things off- no more than 5 seconds of that against the gearbox, all that engine power going into heating the fluid up.
Went for a test drive and it's not bad. I think it needs to come back ever so slightly because peak torque is meant to be 2200 rpm not 1500 so that's something for another day.
Right now it's got some serious get up and go compared to how it was before.
I even had it up to 60 (per GPS!).
Phil
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Last Edit: Mar 14, 2021 22:50:21 GMT by PhilA
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Mar 14, 2021 23:46:14 GMT
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Parked the car in the garage because we're due rain.  Sitting down and now trying to relax. It reminded me that after all that I need to set the points, which will cock up the timing again. Oh well. Phil |
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Last Edit: Mar 15, 2021 0:39:37 GMT by PhilA
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Nice to see the beer supply problem has been resolved as well!
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Last Edit: Mar 15, 2021 0:53:19 GMT by georgeb
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A moment of impetus tonight.  I pulled the screen wash pickle jar out of the car again because the last time I went to use it the damn thing didn't work.  I had a go at pumping the piston up and down in the bore; it never sealed well and with my finger over the pipe it would hiss- with a little resistance but it would still move. Taken apart, the source of the hiss was found. This washer has disintegrated, and it is actually meant to form a seal on the top of the case around one of the fixings for the repeat valve.  Rummaged about, and found something suitable. The end of the rubber nozzle on my air line blow gun. Filed flat and sanded smooth, fit onto there it forms a good seal. So much so the piston cannot be drawn down with the pipe blocked now.  Reassembled. Net result? Working screen wash again. Happy about that. Phil |
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Didn't feel like cooking tonight.  Went out to get Chinese; tune up seems to be good because local driving fuel economy has increased to nearly 14mpg, which is close to book figures. That's not bad Phil |
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1951 Pontiac Chieftainpeteh1969
@peteh1969
Club Retro Rides Member 107
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Mar 17, 2021 18:57:51 GMT
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Didn't feel like cooking tonight. Went out to get Chinese; tune up seems to be good because local driving fuel economy has increased to nearly 14mpg, which is close to book figures. That's not bad Phil |
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Mar 17, 2021 19:34:23 GMT
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excellent phil,
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Mar 18, 2021 13:20:10 GMT
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Didn't feel like cooking tonight. Went out to get Chinese; tune up seems to be good because local driving fuel economy has increased to nearly 14mpg, which is close to book figures. That's not bad Phil Right? I can't believe he got Chinese! |
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Mar 19, 2021 17:57:43 GMT
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Right? I can't believe he got Chinese! It goes everywhere. Today, McDonald's for lunch because I was on the road for work.  Phil |
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Last Edit: Mar 19, 2021 17:58:50 GMT by PhilA
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Mar 19, 2021 18:03:52 GMT
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I really need to take the sun visor off, clean up the inside and paint it.
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Mar 19, 2021 19:01:03 GMT
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I really need to take the sun visor off, clean up the inside and paint it. Yes you do. Another day. |
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Mar 19, 2021 21:21:38 GMT
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I really need to take the sun visor off, clean up the inside and paint it. First thing I noticed, lol  Then I looked at that lovely dash  |
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Car started running like a bag of smashed cr@p this afternoon.
Much worse under acceleration; know what that means. Pop the distributor cap off, leading set of points had closed up again.
Set that by eye, off on the road again.
Phil
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Last Edit: Mar 20, 2021 2:41:05 GMT by PhilA
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Mar 20, 2021 10:05:45 GMT
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*ahem, contactless ignition conversion* |
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Mar 20, 2021 12:52:52 GMT
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*ahem, contactless ignition conversion* And when that breaks can I fix it in a few minutes with a screwdriver? |
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Mar 20, 2021 13:22:50 GMT
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Never known one to break Phil.
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Then I looked at that lovely dash 