Home » Public Forums » GMCnet » [GMCnet] Fuel filters
| Re: [GMCnet] Fuel filters [message #328176 is a reply to message #328174] |
Fri, 12 January 2018 14:37   |
powwerjon
Messages: 849
Registered: March 2013
Karma:
|
Senior Member |
|
|
J.R. Wright
GMC Great Laker
GMC Eastern States
GMCMHI
TZE Zone Restorations
78 Buskirk Custom 30' Stretch
75 Avion (Under going Frame up Restoration)
On Fri, Jan 12, 2018 at 1:25 PM, John Wright wrote:
> There no such as a clean fuel tank as the fuel being loaded into your tank
> can have contaminates at any time, including the stuff that get loaded when
> the gas station storage tanks are low and haven’t been cleaned lately and
> that happens not as often as you think and the possible contaminated fuel
> right out other delivery tanker.
>
> In the first coach which was a 77 Eleganza II with a 403 and Paterson
> Carb and all electric fuel system with mechanic pump removed I ran 2 fuel
> filters. One before the pump in the back and one before the carb in the
> front. I also which was my choice to remove the internal fuel filter in
> the carb. I change the filters in the spring and in the fall. The front
> filter was moved to the back and the back and a new filter was installed in
> the front. Twice a year for us because the coach was used year round with
> trips to Florida or Arizona in the winter. Those of you that store your
> GMC would only need to replace the filters in the spring.
>
> http://www.gmcmhphotos.com/photos/electric-fuel-pump-
> 26amp-3b-filter/p9898.htmloperating
>
> Our currant GMC is a Buskirk Stretch actual length 29.5 foot long. It has
> an MPFI with a low pressure and High pressure pumps located back near the
> fuel selector valves, which were changed recently. The first is a large
> preflight that also is a coalescing filter to remove any water that may get
> loaded from the stations tanks. It then is pumped by the Low Pressure Pump
> (carter P4070) and then to the High Pressure which is our case is a pump
> used by Mercedes 450SEL then the final filter to the fuel rail and returned
> to the tank that in comes out of.
>
> J.R. Wright
> GMC GreatLakerTech Editor
> 78 Buskirk 30' Stretch
> 75 Avion Under Reconstruction
> Michigan
>
>> On Jan 12, 2018, at 8:38 AM, James Hupy wrote:
>> Fuel filters do serve a real purpose. Fuel is not always clean when it
> is
>> delivered to stations, nor are station storage tanks necessarily debris
>> free. Most pumps do not filter fuel either. So, if you rely upon the carb
>> inlet filter exclusively to deliver clean fuel, expect it to require
>> service. Carry spares. If you use an electric auxiliary fuel pump, most
> of
>> them require a pre filter as well.
>> I guess that it comes back to periodic maintenance. Air filters,
> fuel
>> filters, lug nuts, tire pressures, lubrication, oil changes, walk around
> to
>> check lighting, etc. Pretty necessary on 40 year old vehicles.
>> Jim Hupy
>> Salem, Or
>> 78 GMC ROYALE 403
>>
>> On Jan 12, 2018 7:07 AM, "John R. Lebetski"
> wrote:
>>
>> Seems tanks are either operating room clean or nasty. If clean, you
> don't
>> need add-on filters (added fail or fire risk) and if the tanks are nasty
>> due to dirt in filter evidence, they need to be dropped and corrected.
>> --
>> John Lebetski
>> Woodstock, IL
>> 77 Eleganza II
>>
>
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
|
|
|
|
Current Time: Fri Jun 21 00:49:00 CDT 2024
Total time taken to generate the page: 0.19369 seconds
|
GMCforum
Search
Help
Register
Login
Home
