| beetle_mark |
Thu Sep 20, 2012 4:55 pm |
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| Hello I am having a bit of trouble with my beetle just rebuilt engine fro av1300 to a 1600 the problem is running rough and the exhaust is boiling hot on the left and a lot cooler on the right .I have checked the tappets all ok have done a compression test all are about the same 110 new leads and plugs fitted point ok new dizzy cap rotor arm any idea's will be most welcome thanx |
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| vinbeetle |
Thu Sep 20, 2012 5:33 pm |
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| you have a fresh rebuilt and only have 110 psi?? |
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| OLD VW NUT |
Thu Sep 20, 2012 6:35 pm |
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Make sure you have the plug wires running to the right cylinder. Check for vacuum leaks.
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| beetle_mark |
Sat Mar 02, 2013 3:55 pm |
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| what sould the compression be for a new build 1600 twin port |
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| HRVW |
Sat Mar 02, 2013 10:19 pm |
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| :) 1200/40 hp,1300,1500,1600cc all avg 125 lbs with NEW Pistons/cyls. |
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| jlex |
Sun Mar 03, 2013 6:18 am |
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Maybe it's TOO new & rings aren't well seated yet. At 110, don't worry about it.
Re the heat riser: the one to the right (at least on mine) will be searing hot and the left one, while hot, isn't nearly as bad. Yours is probably OK.
Put a timing light on it & see how it reads.
Engine may be rebuilt, but if carb's dirty it'll run like crap. |
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| andk5591 |
Sun Mar 03, 2013 6:55 am |
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| There was a recent post and have had similar experience - check for vac leaks at the cool side. INtake boots, manifold to head. |
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| andk5591 |
Sun Mar 03, 2013 7:33 pm |
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| and dont freak on the compression until you get a few miles on it. Rings can take 500-1000 miles to really seat well. I just did new pistons and cylinders on a 1600 and its in the same neighborhood, only have driven it a couple miles though. |
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