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Search: Posts Made By: trecool44
Forum: RV-12/RV-12iS 01-27-2021, 12:56 PM
Replies: 42
Views: 4,713
Posted By trecool44
I had my 55 gallon tank filled a few times while...

I had my 55 gallon tank filled a few times while still having this issue.
Forum: RV-12/RV-12iS 01-27-2021, 09:57 AM
Replies: 42
Views: 4,713
Posted By trecool44
We have non ethanol 93 delivered from a local oil...

We have non ethanol 93 delivered from a local oil company. I have not tried other fuel as the non-ethanol 93 is scarce around here. Hey deliver to 4 other customers in our community with no issues....
Forum: RV-12/RV-12iS 01-26-2021, 05:10 PM
Replies: 42
Views: 4,713
Posted By trecool44
Carbs have been balanced and rechecked. Floats...

Carbs have been balanced and rechecked. Floats have been replaced and weighed before install. I’m still thinking coils or trigger coils.
Forum: RV-12/RV-12iS 01-26-2021, 03:42 PM
Replies: 42
Views: 4,713
Posted By trecool44
I have performed the test with the choke on as...

I have performed the test with the choke on as suggested. I am getting the same drop and roughness so I believe I have an ignition issue. What are the tests I can do on the coils themselves? The...
Forum: RV-12/RV-12iS 01-23-2021, 09:27 PM
Replies: 42
Views: 4,713
Posted By trecool44
At this point I do not think it is carb related. ...

At this point I do not think it is carb related. I replaced the B ignition spark plugs. Right after I started it the first time with the new plugs I did a quick mag check and found the drop much...
Forum: RV-12/RV-12iS 01-23-2021, 10:05 AM
Replies: 42
Views: 4,713
Posted By trecool44
So the new spark plug boot and plugs did not...

So the new spark plug boot and plugs did not help. The boots are NGK VD05FMH to match the originals, I got them Amazon. I also switched the ignition modules and found that the issue is still...
Forum: RV-12/RV-12iS 01-21-2021, 01:27 PM
Replies: 42
Views: 4,713
Posted By trecool44
I have found a spark plug connector that looks to...

I have found a spark plug connector that looks to have some internal damage (resistance still checks ok) and looks to have been arcing inside the boot. New one is arriving today and will be...
Forum: RV-12/RV-12iS 01-15-2021, 12:43 PM
Replies: 42
Views: 4,713
Posted By trecool44
I have done in flight ignition tests and...

I have done in flight ignition tests and everything seems fine. Its fine on the ground after the flight while doing a 4000 rpm test. Something is happening during the warmup from cold. One spark...
Forum: RV-12/RV-12iS 01-15-2021, 11:21 AM
Replies: 42
Views: 4,713
Posted By trecool44
Update, the carbs have been overhauled by...

Update, the carbs have been overhauled by Lockwood and reinstalled. The problem still exists to the same extent. I believe it to be an ignition issue. Any ideas about testing ignition components...
Forum: RV-12/RV-12iS 12-21-2020, 12:37 PM
Replies: 42
Views: 4,713
Posted By trecool44
I did find the long bracket to the case was...

I did find the long bracket to the case was broken. I didn’t see any wear on the coils. I think it’s time to send the carbs to Lockwood. Thanks for the information that led to finding the broken...
Forum: RV-12/RV-12iS 12-18-2020, 09:29 AM
Replies: 42
Views: 4,713
Posted By trecool44
More great information, I have performed an...

More great information, I have performed an in-flight ignition check. About 20 rpm more drop on ignition A but still smooth. Once the engine smooths out, it is smooth for the remainder of the...
Forum: RV-12/RV-12iS 12-17-2020, 10:12 AM
Replies: 42
Views: 4,713
Posted By trecool44
Thank you for the quick responses. Yes I weighed...

Thank you for the quick responses. Yes I weighed the floats, the current set was the old style but were still in tolerance for weight. I changed to a new set that was also in tolerance for weight.
Forum: RV-12/RV-12iS 12-17-2020, 07:20 AM
Replies: 42
Views: 4,713
Posted By trecool44
912uls Spark Plug Diagram

Hello, I am diagnosing a rough running / bad mag drop issue on my RV12. I t runs very rough when revving to 4000 for the mag test. It will smooth out after running higher rpm for a minute like the...
Showing results 1 to 13 of 13

 
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