Jessie changes the fuel filter when we installed the new fuel tank we received from Bavarian Autosport.
The under tray shield is important for cooling, easily broken, and readily available from Bimmerworld.
Up front, we have a virtually new BMW chassis. From engine, to cooling system to virtually every part on the chassis, this 1991 318is, is new. FCP Euro supplied us with almost very part on our chassis.
So, with the installation of our Supersprint exhaust system, our 318is chassis is done. We ended up replacing every single item on the chassis, except the transmission and wheel bearings, which seemed to be good. We now have essentially a brand new (mechanically at least) 1991 BMW. Other than our engine and other items noted, there is about $4000 you can spend underneath one of these cars, assuming you are not paying for labor. While perhaps a pricey sum, that figure seems pretty reasonable to make what is essentially a new car, one that should prove to be trouble free. FCP Euro had virtually every chassis part in stock, or just a day or two away. They have proven to be a very valuable partner on this project.
Another thing we did before installing the rear suspension was to install a new fuel tank. Our old fuel tank was battered a bruised and had been sitting for a decade, It was obvious someone had used the fuel tank as a jacking point and we did not trust it. While FCP Euro had most of the parts we needed for the car, they do not sell certain large cumbersome items like fuel tanks. For this, we had to go to long time BMW parts purveyor, [Bavarian Autosport](https://www.bavauto.com). They had the [tank right in stock](https://www.bavauto.com/engine-drivetrain/fuel-system/fuel-tank.html) and got it to us in just a few days. We installed a new fuel pump, a fuel gauge sending unit and lines and we were good to go. This job is quite easy with your rear subframe on the bench and quite difficult otherwise. One last step that we completed on our chassis was to install new undertray shields. These shields get badly beaten and broken in most old BMWs and surprisingly, they are still available from BMW or most any agent who sells BMW parts. We normally think of [Bimmerworld](https://www.bimmerworld.com) as a racing or at least performance parts partner. They too can get any BMW part including the rather large plastic undertray shield. Installing this undertray shield is easy, and important, as at least a portion of the cars airflow for cooling is controlled by this shield. From here we will move on to our body and interior, which still need a lot of work.
View all comments on the GRM forums
You'll need to log in to post.
