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Home » Public Forums » GMCnet » [GMCnet] Need a GOOD relay to run my two fuel pumps. As my new China one just quit.
Re: [GMCnet] Need a GOOD relay to run my two fuel pumps. As my new China one just quit. [message #323794 is a reply to message #323603] Tue, 12 September 2017 12:33 Go to previous message
TR 1 is currently offline  TR 1   United States
Messages: 348
Registered: August 2015
Location: DFW
Karma:
Senior Member
Mens mall is where I get relays. OEM relays are generally high quality, and they're like a buck or 2 at the pick n pull.

Bosch ones are ok... But I've replaced more than a few few on BMWs, Audis and VWs over the years... I prefer the Denso ones. I've been driving Mazda RX7s for 27 years now, and I currently own 4. None are my daily drivers anymore, but all have the original relays, and I've never replaced even one. Including my 85 which has 290K miles on it. Same goes for my friends with these cars. Heck, even my 74 Rotary Pickup, which I've owned for 10 years now, has all the original relays. However, the 74 has the old style with the metal caps and big copper coils that are more "serviceable" than the modern ones, but are heavy, and no better than the newer ones... at least, 30 years in they haven't proved to be so far.

Hard to beat 70s, 80s and 90s Japanese electronics for durability. Can't comment on the newer stuff, as it's still unproven, IMO.

FWIW, all modern GM vehicles I know of run Denso ignition components from the factory...

I have a whole box full of relays I've pulled off of Mazda's in JYs over the years. Used them on all sorts of projects... Lighting, electric fan setups, etc. I generally clip a nice section of the plug harness as well for splicing. When Mazda mounts a relay out in the elements, they generally include a rubber boot that goes over the relay and part of the harness as well. Nice to have if you also plan on mounting outside.

Like this:

http://www.ebay.com/itm/FA0151939-New-Genuine-Headlamp-Light-Retractor-Relay-OEM-For-1984-85-Mazda-RX-7-/182382442682?fits=Model%3ARX-7&hash=item2 a76d738ba:g:cscAAOSwo4pYSbvb&vxp=mtr

They're expensive if you buy them new, (which may be why they last so long)... But like a a couple bucks at the JY.



Mark S. '73 Painted Desert, Manny 1 Ton Front End, Howell Injection, Leigh Harrison 4bag and Rear Brakes, Fort Worth, TX
 
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