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Registered
Join Date: Jun 2018
Posts: 22
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Anyone have a Hammer I can borrow/rent? Trying to fix weird stumble.
Title pretty much sums it up. I have been chasing a weird stumble at ~4,500 RPMs after a rebuild that I have less than no clue what's causing it, so wanted to try hooking a hammer up to see if anything odd jumps out.
It feels like an ignition/timing issue for half a second then pulls hard all the way to redline, only in that specific RPM range, and all after a top end rebuild.
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Registered
Join Date: Feb 2016
Location: SC/VA
Posts: 209
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Where are you located? While I can’t loan it out I’m more than happy to meet up with anyone between Washington DC and North/South Carolina.
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Registered
Join Date: Sep 2001
Location: Southampton NJ
Posts: 186
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If it a 3.2 carrera it’s probably the airflow meter. Very common. The electrical tracks that the wiper arm moves over wear out in that range.
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Registered
Join Date: Sep 2001
Location: Southampton NJ
Posts: 186
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Same on the 964 as well
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