Hi Dave

I’m not sure of the pots resistance without a diagram, but it wouldn’t be 5ohms.
Was that a typo? I would expect maybe perhaps 5K ohms.

Steve Izett

> On 17 Nov 2020, at 4:39 am, David Leonard wdleonard@gmail.com <flyrotary@lancaironline.net> wrote:
>
> Hi All,
>
> I have just completed an engine rebuild.  This issue was caused by a crack in the T2 exhaust manifold that melted a coolant line and a fuel line, causing an engine fire.
>
> I landed safely and had to rebuild the engine because the o-rings melted from the coolant loss.
>
> Im trying to get the new engine running again.  Compression is great, spark is great and I have triple checked the timing.  I am getting some amount of fuel but no combustion.  I have narrowed the problem down to a few possible issues.
>
>   During the rebuild I replaced the 5ohm potentiometer that controls the mixture because the knob was broken off.  So I possibly mis-wired the replacement potentiometer, it is not actually compatible, or I damaged the board when I trimmed it to allow the new one to fit.  I wonder if anyone has one lying around I could borrow to test this link in the chain.
>
> Thanks
> Dave Leonard
> Turbo 13B RV-6
> 858-254-3357