So today, my new fuel pressure regulator (Pierburg) came. Decided to replace the old one. Removed fuse #11 for fuel pump and drove the car til it dies, disconnected the battery, removed the old pump. Thought to myself, easy breezy. Installed the new pump, gave myself a big clap on the back, did a dance as well to celebrate a job well done. Went to start the car and fuel is leaking from the new regulator. Remove the new regulator and put back the old one and now the old one is leaking. Any ideas?? I did not double the o-rings, I made sure to removed the old o-ring when I removed the old regulator. New one came with a new old ring on it already. I did pretty much what youtubers did. I really don't know why mine is leaking. I'll try again in the morning but if you guys have any ideas or advice, please send them my way. Thanks so much.
-
-
did it have the plastic spacer on it?the grey part under the on LHS
[img]https://www.bimmerworld.com/BMW-Part...722040_i_1.jpg[/img]
Last edited by digger; 07-13-2020, 12:29 AM.89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
-
Thanks for the response digger. Problem solved this Morning. I'll post what I did just in case someone attempts to do this in the future. The part you referred to is what came out of the car (Bosch brand - BMW-Part-13531722040). I believe they discontinued that part according to RealOem. Part I bought is a Pierburg (BMW-Part-13531722041), came with just an O-ring and not that grey plastic part. So when I removed the old regulator, I noticed it's stuck in pretty tight. When I put in the new part, I noticed it wouldn't go in properly because of the O-ring. Same thing when I put the old part back. I thought by tightening the 2 bolts/nuts that it will push the "nipple" part along with the O-ring in for me. I guess not because that's where the fuel was leaking when I started the car. So this is what I did this Morning. As i'm putting the "nipple" part in, I used a small pointed trim tool that I have and help push in the O-ring as I'm pushing the nipple in. I then tightened up the 2 bolts/nuts, started the car (praying) , and success! No leaks. So if you plan on doing this, make sure you use a small pointed trim tool to help push in the O-ring as you push in the regulator. If you don't have a pointed trim tool, use a small flat head screw drive (tape it so you don't mess up the O-ring)Originally posted by digger View PostComment
-
You can put some oil on o-rings to make them softer during installation.Comment
Comment