I just did the S4 to S5 conversion on my car. 1986 NA. I went to the dealer and bought new injector seals. Problem is the lower grommet on upper injectors is rather loose on the injector... the dealer said they are all four the same. The bottom injectors had a a good tight seal. I retained the old injectors and ordered the seals for an S5 Setup. The grommet is so loose it falls off. The other question is what rubber fuel line is used by most people, the only line I can find at a parts store is 50 psi Is that high enough or do I need to go to a speed shop?

 

I use the good year 50psi fuel/emissions hose with no problems.

 

Thats what I got and figured it would be ok. thanks
Does anyone know about the fuel pressure regulator or dampner failing causing engine fires? The aluminum hood I bought has severe burn marks on the inside and I think i have heard something about this anyone else hear this?

 

Yes the Puslation Dampener can fail and can cause fires.

 

ok so is there a replacement part that fixes this?

 

usually a fresh stock one does the trick

 

There is a lot of arugeement over this but u can use a banjo bolt if u don't have the 200 bucks the mazda dealer ship wants for a pd.

 

After searching everywhere for the banjo bolt I finally got one from Mazda. They had to special order it. Then, when I went to put it on, I couldn't tighten it enough to stop a really small leak. I ended up snapping the bolt.

I scrapped the idea, replumbed the fuel line using standard fittings and left space for a Marren FPD. It runs without it, but I might buy the Marren in the future to be safe.

 

http://www.rotaryresurrection.com/2n..._dampener.html
has a good write up of the the elimination i did it and have had no problems yet but all three of my pulse dampeners had failed

ps hope the link works