Onion Posted September 29, 2013 Share Posted September 29, 2013 I'm about to replace my fuel filter, but I'm reading lots of differing opinions online. Some say before the pump to protect the pump, some say after the pump to protect the carb in case the pump gets damaged. I'm running the stock mechanical fuel pump which then goes to a Holley carb. So, filter before, after, or does it not matter? Also, how do we swap out the filters on these cars? I know that in newer cars you pull the fuel pump fuse and let the engine suck up all the remaining fuel so it doesn't make a mess. Do we just pinch a fuel line and run the engine (but isn't it bad for the pump?)? Or do we just make a big mess and have fuel pour everywhere? Thanks in advance. Quote Link to comment Share on other sites More sharing options...
Domzs Posted September 29, 2013 Share Posted September 29, 2013 I would rec to place the filter after the pump , as most carb cars have them there . You can also add on a clear glass tube filter ( serviceable ) before the pump too . Quote Link to comment Share on other sites More sharing options...
BluDestiny Posted September 29, 2013 Share Posted September 29, 2013 Put the filter in the oem possession. I wouldn't know where that is since my Z had an aftermarket low pressure electrical pump near the tank with a fuel filter before it, and another clear fuel filter in the engine bay just before the carbs. Quote Link to comment Share on other sites More sharing options...
johnc Posted September 30, 2013 Share Posted September 30, 2013 Before the pump. Quote Link to comment Share on other sites More sharing options...
Onion Posted September 30, 2013 Author Share Posted September 30, 2013 Thanks for the advice guys. I'm gonna be sticking it where I've always had it - before the pump. Quote Link to comment Share on other sites More sharing options...
ISPKI Posted October 13, 2013 Share Posted October 13, 2013 Do what Domzs recommends, put the replacement filter where the factory had it. I would also recommend getting one of those small clear filters and placing it before the pump, that way, you can pick up any contaminants coming out of the tank and protect your pump. There really is no reason not to have the extra filter pre pump, they only cost a few $. Quote Link to comment Share on other sites More sharing options...
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