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Re: [GMCnet] Carb fuel filters [message #327148 is a reply to message #327143] Fri, 15 December 2017 16:11 Go to previous messageGo to previous message
Will Albers is currently offline  Will Albers   United States
Messages: 183
Registered: November 2017
Location: Detroit MI (Belleville)
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Senior Member
Any advantage to the non check valve version?

On Dec 15, 2017 3:27 PM, "Ken Burton" wrote:

> Wix must have seen the reversal problem. On the Wix version of this
> filter the back (non-entrance) side is manufactured slightly larger and
> will not
> go in backwards. I have two of the non-check valve versions (33148) here
> and both were made that way. I can not verify the the 33152 version is the
> same. I also have no idea what other brands have done.
>
> powwerjon wrote on Fri, 15 December 2017 10:37
>> Here are some good pictures of the fuel filter and how it is installed.
> You can put them in backwards, ask me how I know!
>>
>> http://www.gmcmhphotos.com/photos/general-pictures/p58270-img-07751.html
>> http://www.gmcmhphotos.com/photos/general-pictures/p58271-img-07761.html
>> http://www.gmcmhphotos.com/photos/general-pictures/
> p58269-fuel-system-q-jet.html
>> http://www.gmcmhphotos.com/photos/general-pictures/
> p58268-q-jet-fuel-filter.html
>>
>> J.R. Wright
>> GMC GreatLaker 18 Year Member
>> GMCGL Tech Editor
>> GMC Eastern States Charter Member
>> GMCMI 18 Year Member
>> 78 Buskirk 30' Stretch
>> 1975 Avion (Under Reconstruction)
>> Michigan
>>
>>> On Dec 14, 2017, at 10:19 PM, Ken Burton wrote:
>>>
>>> A note on the fuel filter inside the 455 or 403 carb.
>>>
>>> It turns out that there are 2 different filter listed both by Ac
> Delco and Wix. In 1976 GM changed ALL filters of this type in all vehicles
>>> using
>>> that filter. The change was adding a little rubber flapper check
> valve on the entrance side of the filter.
>>>
>>> Either filter will fit in all years of our 455 and 403 engines with
> Quadrajet carbs.
>>>
>>> AC Delco GF441 or Wix 33148 is the one without the check valve. (pre
> 1976)
>>> AC Delco GF471 or Wix 33152 is the later version with the internal
> check valve and cost $1.80 more. (listed as 1976 and later)
>>>
>>> I did not check out other brands and I also have no recommendation on
> which version to use.
>>> --
>>> Ken Burton - N9KB
>>> 76 Palm Beach
>>> Hebron, Indiana
>>
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>
>
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
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1978 Palm Beach.
Detroit Michigan

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