SKATERHAULER

Spent a week installing new head gaskit , ARP studs and DDP stage 2 injectors , started it up no leaks , went for a ride and noticed number 1 injector was leaking . I loosened the line nut then tightened , removed return line sealing washer and re-intalled , still leaks , removed number 1 and 2 injector and swapped out , and it now leaks @ # 2 . Upon removal I checked to make sure injector itself was tightened together and it was tight , and thoughts ?

Larry

Lil Dog

Its leaking from the injector body to the high pressure line right? I had mine leak from the return line and needed to really clean the tubing connection and copper "U" washer.

I would just take some fine emery and clean the injector end and tubing. its a compression fit so also make sure all the threads on the injector are clean and straight, it could be binding before its tight.

After all that call DDP..

SKATERHAULER

To be honest I dont think the leak is fron the HP line , as mentioned it was orig put in # 1 where it leaked and now its in # 2 and still leaking . It appears to work up the threads

Lil Dog

So is it leaking fuel or compression??

SKATERHAULER

Sorry , fuel ! Comp would be a no brainer to figure out

Lil Dog

I would pull the return line off again and polish the washer and injector body.. I had to do mine twice to get it to stop leaking.

SKATERHAULER

Very good tip , I will try that on Sun 9-11-11

SKATERHAULER

Well I removed the injector with leaking fuel issue which was in # 2 hole , polished the area where the return line goes on and moved it to # 3 hole and installed 3 new sealing washers for 1 -3 hole . Fired it up and I now have a fuel leak on # 3 and it is pretty clear that it the injector itself and only leaks after a few minutes and gets hot . Lenny @ DDP said it is very rare to have this issue , however it does happen every once in a while and is over-nighting me an injector . Anyone else had this issue ?

Lil Dog

Well you did everything I can think off. Lenny is a good guy to deal with.

SKATERHAULER

Did your trick , polished exit port area with # 400 to remove maching grooves and still leaks . My 35 yrs from Dirt bikes to my offshore race boats I have always had one off problems that nobody else ever has !!


Larry