Johnlorio Posted February 4, 2014 Report Share Posted February 4, 2014 Bought a new Japanese fuel pump for the RL engine. Upon installing I found that the bottom Flange had been thickened over the original design. The studs in my block were too short. Post at Rallye site discussed this as a running change because old design had cracking problems. As the studs were not wanting to Remove easily, and I feared braking a stud trying to remove one, I took a time out. Searching eBay I found an EPC fuel pump from Europe advertised to fit the R16 engine up to SN 40000. It was also $53 as opposed to $148 for the japanese pump. I took a chance and ordered it. I installed the EPC pump. Not only did it fit the short studs it worked perfectly. It looks quite different from the standard pump so i had my fingers crossed. These are still being advertised on eBay so they are still available. Quote Link to comment
ggzilla Posted February 4, 2014 Report Share Posted February 4, 2014 RL engine? Do you mean the R16? Or you mean RL411? Quote Link to comment
KELMO Posted February 4, 2014 Report Share Posted February 4, 2014 He has a 411 sedan SSS, I think it has an R16 motor. It is certainly different than the J motor in his wagon. I could be wrong.......I don't know that much about 411's and have only seen the car twice. Quote Link to comment
Johnlorio Posted February 4, 2014 Author Report Share Posted February 4, 2014 It is an R1600 as in the SSS and roadster. Sorry about confusion Quote Link to comment
MikeRL411 Posted February 4, 2014 Report Share Posted February 4, 2014 The RL411 used the early thin flange fuel pump, secured with 2 bolts. The later 1968 and later 1600 [Roadsrter, and 2 liter, Type R ] engine used an "improved" fuel pump with a thicker flange. No problem! Throw away the original 411 fuel pump bolts [or be wise and save them, lord knows when you will need them], install an "all thread" stud, put the new pump in place and torque down with nuts and washer that suit your either early SAE or later Metric nuts. Did this on my 1967 RL411 when the "original" fuel pumps were declared NLA. Perfect fit and operation! Quote Link to comment
raceneely Posted February 4, 2014 Report Share Posted February 4, 2014 great post Quote Link to comment
Johnlorio Posted April 4, 2014 Author Report Share Posted April 4, 2014 Replaced thin flange fuel pump with thick flange pump and new studs. Worked perfectly for about one hour then suddenly no gas. Took pump off and filled glass bowl fuel filter. Worked pump lever arm by hand and it pumped the bowl dry withou refilling from the tank. Eureka there must be an air leak between the tank and fuel filter bowl. I knw the lever arm is engaging the cam on the cam shaft Now on search for leaks Quote Link to comment
MikeRL411 Posted April 4, 2014 Report Share Posted April 4, 2014 The hard line from the fuel pump back to the tank has a junction [for lack of a more proper name] below the front passenger seat under the car. It is a press fit of the front and rear hard lines. I suggest that this is the first place to look, and the most accessable! If you see a wet spot, EUREKA! 1 Quote Link to comment
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