We’re not talking about fuel, but my solution happens on that side of the rail. Like blaming a failing alternator, don’t blame the lower seals if they leak. This concept for solving boost or vacuum leaks applies to nearly every of fuel injected car out there. More so when any of them that are forced-induction. This is how I fix it on my DSMs.
There are THREE seals on a DSM injector. A fuel o-ring, a lower injector seal, and an upper seal which applies pressure to the lower seal. It’s a spacer. If the upper seal fails, the lower ones don’t work. If the lower seals aren’t hard as nails, they’re probably not at fault if you have boost leaks.
I said it in the video… RTV isn’t for everything.
Post time: Jun-22-2017