Meth pump rebuild
Le Mans Master
Joined: Nov 2007
Posts: 6,419
Likes: 200
From: Wilkes-Barre Pa
Burning Brakes
Joined: Jul 2004
Posts: 759
Likes: 12
From: Tampa Fl
Best analogy I can use is salt water and a boat. Keep the boat in salt water, it will get issues sooner than latter. Methanol is a chemical, the rubber in the pump from sitting in it will simply harden a little at a time over a period of time. Once it hardens past a certain point, it shrinks while hardening.. then you have less pressure from the pump.. and eventually a leak.
If the car is setup where it needs the meth kit to live and survive.. whats 80 for a rebuild every few years? Like changing Diff fluid, trans fluid, brake fluid.. etc.. its just maintenance.
If you ran pressure monitoring.. transducer wired through HP or data logger.. and you know what a good pump puts out.. lets say 120 psi at 12 psi boost.. if 2 years from now your at 120 psi at 12 psi boost.. I wouldn't touch the pump. How bout if your at 100 psi at 12 psi boost or 80 psi.. if your guessing.. best is to simply renew. There is nothing better than new.. especially when it comes to fuel system components.
HTH
