Bimmerfest - BMW Forums - View Single Post - E39 540i low compression
View Single Post
Old 03-02-2011, 07:48 PM
franka franka is offline
Officially Welcomed to the 'Fest
Location: Lakewood
Join Date: Jan 2006
Posts: 8,776
Mein Auto: E39 540i Sport

An engine with enough miles to have low compression could also have less than specified closed and/or open spring loads on one or more valve springs. Please don't misread this. I'm not saying weak springs are the case of your low compression. I am saying that the miles that would cause your worn seats would probably cause some springs to be below spec loads. With your meticulous cleaning it would be a shame to reinstall even one weak spring. Even worse to not check them at all

I realize its easy to sit here and suggest things for you to do but I would be remiss to know this and not mention it.

540, Dirrezas (4) @ 275/35-18 ea, Eibach springs & bars, Bilstein Sports, Dinan Stage 2, slotted ATEs, Hi-Temp HTP pads, SS Lines, UUC-SS, White/Tan, Bling-free & Stealthy

Last edited by franka; 03-02-2011 at 09:02 PM.
Reply With Quote