746 Injector o-rings

[dkmcgowan]

I just need to replace o-rings on some 746 injectors.  The original Renix injectors had a larger size on the fuel rail and a smaller on the bottom, when doing the 746 injector do I use the same size o-ring on the top/bottom?

 

Can I pick the o-rings up at a parts store?

 

Here are the original ones...

 

http://www.oreillyauto.com/site/c/search.oap?year=1989&make=Jeep&model=Comanche&vi=1181685&keyword=fuel+injector+seal%21s%21o-ring+kit

 

 

I'm thinking I just need the BWD 274571, but cannot tell, seems like both are the same size.  The 746 injectors I have appear to have the same size o-ring on them.

 

http://www.oreillyauto.com/site/c/detail/BWD0/274571/02524.oap?year=1998&make=Volvo&model=S70&vi=1434002&ck=Search_fuel+injector+seal%21s%21o-ring+kit_1434002_1481&keyword=fuel+injector+seal%21s%21o-ring+kit

 

 

Just making sure...  I know they are Bosch EV6, but that doesn't help me find them local.

[xjrev10]

I upgraded my injectors and bought new injector o rings for a 88 renix right from carquest. Worked like a charm. Make sure you use a little bit of lube on them.

[DirtyComanche]

I did mine with the same size on both...  The ones I pulled out, and every set I've ever pulled, were all the same size.

 

As said, use lube.  Vaseline or DC-4 are my go to, but light oil would be fine, or Crisco if you're trying to relive the 70s.