Re: Fuel pump rebuild

Posted by HH56 On 2018/5/4 19:18:27

And also make sure the diaphragm(s) are not adding to the spring tension. If you pushed the arm down so the diaphragm was moved to its full flexed or travel position before tightening the screws holding the halves together it should be OK but if the screws were tightened while the diaphragm was mostly flat then when it is flexed it could be stretched tight and causing a higher pressure.