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ryhan87 · 09-23-2009, 09:26 PM

Ok so I looked over a bunch of stuff to try and get it running right. Heres what I did. Set points, and checked timing. Timing was set at 4deg. Compression test. 160-140 on four holes, 2 holes where as low as 115. Changed fuel line, vac lines. Pulled valve cover and set all the valves. Checked crankcase vent. I assume you would be able to here blowby when you remove vent and listen so think rings are good. Ran carb cleaner through. Also checked over intake manifold for any vac leaks. Its running better than it was but still not great. Still backfires a bit till its warmed right up. Also doesnt seem to have much power in lower rpm range. Any other suggestions? Also what should this motor rev too? It seems to start almost backfiring or something at around 4000 rpm? Im thinking valves and seats now?

09-23-2009, 09:26 PM	#13
ryhan87 Registered User Join Date: Sep 2009 Location: Lloydminster Alberta Posts: 32	Re: Help Motor doesnt run right. Ok so I looked over a bunch of stuff to try and get it running right. Heres what I did. Set points, and checked timing. Timing was set at 4deg. Compression test. 160-140 on four holes, 2 holes where as low as 115. Changed fuel line, vac lines. Pulled valve cover and set all the valves. Checked crankcase vent. I assume you would be able to here blowby when you remove vent and listen so think rings are good. Ran carb cleaner through. Also checked over intake manifold for any vac leaks. Its running better than it was but still not great. Still backfires a bit till its warmed right up. Also doesnt seem to have much power in lower rpm range. Any other suggestions? Also what should this motor rev too? It seems to start almost backfiring or something at around 4000 rpm? Im thinking valves and seats now?