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Author: Subject:  2L air engine temperture?
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posted on December 15th, 2006 at 06:11 AM
2L air engine temperture?


Is it normal for one side [left] of a 2L aircooled engine to run noticeably hotter than the other side? This includes the seperated exhaust systems[it sitting in a buggy]

[ Edited on 14-12-2006 by rollers ]
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posted on December 15th, 2006 at 06:51 AM



No



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posted on December 15th, 2006 at 09:40 AM



..no...



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posted on December 15th, 2006 at 11:19 AM



Your carbies are probably way out of tune and one side is running lean (and hot)

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posted on December 15th, 2006 at 11:34 AM



Are all cylinders firing??



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posted on December 15th, 2006 at 02:08 PM



Quote:
Originally posted by rollers
Is it normal for one side [left] of a 2L aircooled engine to run noticeably hotter than the other side? This includes the seperated exhaust systems[it sitting in a buggy]

[ Edited on 14-12-2006 by rollers ]


When this happened to me it turned out to be a big vacuum leak on that side causing it to run lean.
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posted on December 15th, 2006 at 03:54 PM



Could also be that one side has shit compression... caused by bad ring/s, cracked head, burned valve/s... tho I would read the plugs first to ascertain if one side is running richer than the other... in either situation (mixture or compression related), the car would run rough and/or lack power.

One thing you should remem,ber is it is better to run slightly (only slightly mind) overrich, than to run slightly (or more than slightly) lean on either or both sides.

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posted on December 15th, 2006 at 08:33 PM



Forget the lean/rich for now. More likely that one side isn't 'working' due to vacuum leak which means the mixture isn't firing in the cylinder



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posted on December 15th, 2006 at 09:53 PM



on type 4s doesnt the air for the left bank go thro the oil cooler b4 the cylinders?

does ur motor run fine?
coz air leaks, bad mixture or poor compression all are fairly noticable when they happen
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posted on December 16th, 2006 at 05:26 PM



Quote:
Originally posted by DUB74L
on type 4s doesnt the air for the left bank go thro the oil cooler b4 the cylinders?
No there is a splitter inside the front half of the fan housing that directs some air to the cooler and the rest to the cyls,it is connected to the t/stat rod and when cold all the air goes to the cyls, when hot as above:beer




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posted on December 19th, 2006 at 08:33 AM



Thanks all. A lot to investigate. I hope there is enough time over x-mas. The strange thing is that if anything, the cooler site runs lean [plugs,and has a slight tendency to miss fire.]
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posted on March 12th, 2007 at 11:00 PM



I finaly worked out that both sides where leaking air through some leaking caps over suction pipes associated with the dismantled central idling system. Put propper caps on and it runs very well. Thanks all.
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posted on March 13th, 2007 at 09:12 AM



:tu:



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