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Hi everyone, I just finished rebuilding a 2.2-liter engine on my 1971 Porsche 911T with Weber carburetors. The engine is still breaking in and runs perfectly up to 4,000 RPM, but then it stumbles and won’t go past that point under load.
However, if I press the clutch and rev it in neutral, it reaches 7,000 RPM without any issues. New Spark Plus Distributor is electronic ( but don't know how to measures degrees or use a lamp I did not have the syncrometer ( mat be could be the air/ mixture ) May be a carbs clean could help ( in that case I will new a kit of gaskets jets etc ? ) It seems to me is an ignition or electronic problem , Thanks and good ride ! Ralph |
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03-16-2025, 06:28 AM
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Hi everyone, I just finished rebuilding a 2.2-liter engine on my 1971 Porsche 911T with Weber carburetors. The engine is still breaking in and runs perfectly up to 4,000 RPM, but then it stumbles and won’t go past that point under load.
However, if I press the clutch and rev it in neutral, it reaches 7,000 RPM without any issues. New Spark Plus Distributor is electronic ( but don't know how to measures degrees or use a lamp I did not have the syncrometer ( mat be could be the air/ mixture ) May be a carbs clean could help ( in that case I will new a kit of gaskets jets etc ? ) It seems to me is an ignition or electronic problem , Thanks and good ride ! Ralph |
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03-16-2025, 06:29 AM
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Join Date: Dec 2020
Location: The Swamp and NC
Posts: 452
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Dear Ralph, your engine is a mess. Please start a new thread so we can work through your problems one by one..
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I'm not picking my nose..I'm porting my upper intake manifold. |
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03-16-2025, 08:37 AM
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Ralph, I don't know the exact rules any longer but you may need a few more posts to the forum before you can start a new thread. Easy to do.
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Walt 82SC 3.0 81SC 3.6 |
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03-16-2025, 08:57 AM
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Hope this Helps! It's what I run.
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1970 911T "Albert" 1986 944 Sold 1980 Euro 924 Sold 1967 911 Sold but Greatly Missed!! |
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03-16-2025, 03:55 PM
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Can someone explain the advantages of the drop from 6 degrees at 500 RPM to 3 degrees at 800 RPM? Does it help with start up and idle? Also, why not hit the max advance of 35 at 6000?
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03-16-2025, 07:48 PM
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Quote:
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78’ SC 911 Targa - 3.2SS, PMO 46, M&K 2/2 1 5/8” HEADERS, 123 DIST, PORTERFIELD R4-S PADS, KR75 CAMS, REBEL RACING BUSHINGS, KONI CLASSICS |
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03-19-2025, 05:45 PM
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Albert
Stella
