| [GMCnet] Fwd: What micron filter works best for US both. EFI/Carb [message #347865] |
Sun, 15 September 2019 14:49  |
Mike Kelley
Messages: 467
Registered: February 2017
Karma:
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Senior Member |
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To All:
A very interesting question (see attached) - could this be why we as GMCers are seeing so many fuel delivery problems?
Not being a mechanic - I don’t know - but pose it for the rest of you to ponder! Seems to me to be a big difference tween 2 microns and 20 microns!
Mike/The Corvair a holic
Sent from my iPhone
Begin forwarded message:
> From: Bob Dunahugh
> Date: September 15, 2019 at 2:36:13 PM CDT
> To: "mpk10102@gmail.com"
> Subject: What micron filter works best for US both. EFI/Carb
>
> The Qjet carb is a 2 micron carb filter from what I understand . I have a filter that was installed 5 weeks ago in a Qjet. The adhesive that held the steel ends on. Came loss. That contaminated the carb. Next had to clean the carb. Then test it on a flow bench. So why did that filter come apart? Could this same thing happen to an EFI filter?
> Next. If a Qjet required a 2 micron filter according to GM. What does my GM, 454 TB require that I have. I have in line filters just before my two 13 LBS. EFI pumps at the rear now. Most small in line filters seem to be 20 micro. As I see it. Isn't my in line filters just sorting out the big rocks? Shouldn't I have a smaller micron filters to protect my EFI pumps, and TB? Are some of the EFI/carb pump issues. Because our pumps aren't properly protected? Does that GM TB have a filter/screen? I think of our 78 Royale. Like Apollo 13. Failure IS NOT an option. Been that way for 16 years. Never been towed. YET.
>
> This might be of interest to those on the GMC net. Maybe someone could post this there. I've been monitored on the GMC net by Billie Massy since back in June. I lost interest in posting. And quit posting on the net back then. Bob Dunahugh 78 Royale since 2003.
>
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