Starting my engine on a stand, issues arose |
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Starting my engine on a stand, issues arose |
malcolm2 |
Sep 29 2020, 06:16 AM
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#41
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
I have built a fresh 2.0 and borrowed a set of weber 40s to get her running, broken-in etc....
I bought a new single vacuum distributor with the flame thrower 3 module inside. Also bought the Petronix coil. I built up oil pressure, then connected the gas lines, fuel pump, and coil. Tach and timing light too. After a few tries, she started. As expected running very ruff. Back-firing thru the carbs. I loosened the distributor and tried to make some adjustments. That seemed to help the back-firing a bit, but not totally. I got the idle timing to what looks like 7 btdc, but it is tuff to work everything without a helper. I know next to nothing about these carbs, and about the same amount to tune them enough to bench run the engine, but I am looking into that. Any help would be appreciated on the carbs. I got it idling, again, very ruff. So I wanted to do the cam break in, so I rev'd it up to about 3000 and held there. Maybe a minute and the revs dropped and I had to putz with the accelerator to keep her going. Again up to 3000, same thing revs dropped. I have a note in to my distributor vendor about how this "rev limiter" on this module works. So three things here. She is still running ruff, back-firing etc...and there is the high rev cut-off. Lastly the carbs, any quick checks or adjustments there? Any thoughts or suggestions? |
malcolm2 |
Oct 10 2020, 11:56 AM
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#42
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
I am back at it after a Fall Break with the wife.
The German Snail has arrived, but I seem to have a problem. The snout seems to be too long. It is sitting on the (not sure what it is called) cross bar in side the barrel thus it does not seal up. I am thinking of cutting it around the bar, or making it shorter? Or maybe find a large O-ring to set on the plate. Thoughts? |
Gint |
Oct 11 2020, 08:49 AM
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#43
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Mike Ginter Group: Admin Posts: 16,083 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains |
I am back at it after a Fall Break with the wife. The German Snail has arrived, but I seem to have a problem. The snout seems to be too long. It is sitting on the (not sure what it is called) cross bar in side the barrel thus it does not seal up. I am thinking of cutting it around the bar, or making it shorter? Or maybe find a large O-ring to set on the plate. Thoughts? @malcolm2 Look at the fittings on the STE in this ad: https://www.cbperformance.com/product-p/6537.htm Take that adapter off and see what is underneath. That adapter works well if you have velocity stacks on your carbs. You don't. Hence the problem. Not insurmountable, but... you may be able to home brew it depending on what's under the adapter you have or even with that adapter. I have had a German STE for 20 years. Never needed anything else. I have used Perry's ( @IronHillRestorations ) carb tuning guide many, many times over the years. I read it to refresh my memory every time I have to go in and do it again. I think the biggest concern here is you don't want to spend too much time dickin around tuning and syncing carbs before you get that cam break in done. And I don't know how perfect it needs to be just to do a cam break in. I'll leave that to the experts. I'm just dangerous and headin for a meltdown. (IMG:style_emoticons/default/happy11.gif) Linkage bushing - Check your local hardware store's supplies of plastic bushings. You'll probably find something that works. It doesn't need to be perfect or exactly like the other at this point. |
malcolm2 |
Oct 11 2020, 12:24 PM
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#44
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
Linkage bushing - Check your local hardware store's supplies of plastic bushings. You'll probably find something that works. It doesn't need to be perfect or exactly like the other at this point. When I took it all apart, I noticed that there was a spring in the bushing on one side. Will the other side need a spring? The 2nd bushing was there, it has just pushed into the cup. But it is in bad shape. |
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