[Vwdiesel] Injectors Bosch. ---( a little nozzle talk for beginners )

[H.Hagar]

Seems like yesterday that Loren had to tell me that nozzles were
available for injectors. ----- Now that I have done and tested a bucket
full of the "Masterpieces"  ---the worry was for nothing.

Everybody here can do those Bosch injectors --that's how easy they are to do.

Hell I only use torque wrench ---- to be fuzzy .         Mark Shepherd asked about
nozzles ---so this is to answer him.   The nozzles are clearly marked with a number.
The number is a Bosch number and it is different from the VW number.

Here is a sample of numbers   Bosch  DN  0  SD  193    VW   068  130  211. that
is the proper nozzle for the 1.5L NA.

For the 1.6L  NA  and turbo use  SD  293.

Are there other nozzles available ?   yes.      like a SD  273.

So what is the difference in the nozzles ?   very little except price.   It has to do with
the geometry of the pintle and seat. Think valves , the angle of seat and so on.

The angle of seat will change how much fuel is injected in relation to lift of pintle.
Slow release makes for a nice quiet engine ,  less marbles --smaller marbles.

By the way a full squirt takes only about 1 Ms  That's fast.

Have I tried say a nozzle made for a 1.5L  in say a 1.6L Turbo ?   I drive it every day
works like a dream.  Using Hillbilly tuning ---I can not detect any difference between
nozzles.   So they all work.  I have tried them all.

My advice is to try to get the Throttling nozzles --- nice slow injection. They may be hard to get.
I am still looking.

There you go Mark Shepherd  ------ To get the nozzles cheap is another issue.

If you have a brother in law in Brasil   thats were to ask.  I pay 14.30 dollars canadian for each.

Can injector pintles be lapped in like say exhaust valves ?  --yes indeed I know a mercedes
guy who claims it is done in Germany.

If in doubt get NEW nozzles  ---- and keep track of mileage.   From first hand experience
new nozzles , saved me a LOT of time.     No dripping and reliable opening pressure.

Hagar.

PS: It is raining this morning so I got time to write.