got some fms #30's that I would like to have looked over and cleaned prior to install

 

There are cleaners and there are "cleaners".

Inquire what method they use before you hand over the cash. JMHO

 

TPIS does injector cleaning for $15/injector, and will blueprint and flow match for $25. Check page 112 of the catalog.

 

Just another option, Racetronix does it for $10 each. Clean, flow and replace any parts that ned it.

 

Racetronix is a site sponsor as well.

 

You can not blue print / flow-match a non-matched set of injectors after the fact. This is done by flowing and sorting through hundreds of injectors at the distribution level in order to group them into closely matched sets. The best you can hope for by cleaning your injectors is to get them back to the way they were when they came out of the box new.

Jack
Racetronix

 

i just got my injectors cleaned for $60 at Kwik Kar for all of the injectors. i also got the fuel filter changed. after only 68k miles it was filthy

 

The best method is to have the injectors removed and placed in an ultrasonic bath with solvent. Most injector service facilities (mainly diesel shops) have this equipment. This way the injectors can be run through the injector flow bench to have the spray pattern and delivery analyzed before and after cleaning to see if replacement is required.

Some service shops use a system where they run the car off of the fuel rail charged with concentrated solvent. This is somewhat effective when the injectors need slight cleaning but nowhere as effective as the ultrasonic bath. Similar results can be had by mixing 30% Xylene with a full tank of gas.

Jack
Racetronix

 

i appreciate the help guys. Reason I need them cleaned, or at least percieve the need to clean them is b/c I bought them used off ebay. They arrived and are absolutely filty on the outside. Whoever stored them obviously didn't seal them off from their dirty garage. There is dirt down near the pintle and up near where the fuel rail attaches. I'm gonna prolly go through racetronix b/c I need a fuel pump anyway so will probably just do this all in one shot once I save up the $$$

 

I've got the certified flow charts to prove TPIS can do it. They do substitute from their stock, AT NO EXTRA COST if they need to to get the flows matched. That's the advantage of dealing with a source with a large inventory.

 

Are you saying that for every injector that does not fall within a certain % they will sell you a new one?

What happens if you do not have a matched set and every injector you send in is different from the next by x% or more?

What % do they consider acceptable for a matched set?

What flow data tests do they perform?

What do they do with the injectors that do not not fall within the range that they deem acceptable?

Jack
Racetronix

 

all very good questions, anyone got answers? Jack, isnt Xylene some kind of paint thinner type solution you can get at Home Depot, pretty sure I have seen it somewhere before? If so, how much should I add to a full tank of gas inorder to clean my injectors? At 100k I figure they could use a little cleaning, but I'm in college so I have to go the cheap way.

Thanks,
Eddie

 

Unless the label states 'virgin Xylol / Xylene' you are taking a chance that it might be reclaimed product. Sometimes paint thinner is a mix of various mineral spirits such as Toluene / Toluol etc. It is best to get what you need in 5 gallon pails from your local chemical supply house that way you can confirm the contents and its purity.

A 30% concentration is the maximum you would want to run with 87 octane gas.

Jack
Racetronix

 

but how much do you add to a tank of gas with 93 octane?

 

Look in your owner's manual where it states your tank capacity and figure it out from there. Obviously 30% would vary from car to car as not all have the same size tank

Octane higher than 87 typically has varying amounts of Xylene, Toluene, MTBE and alcohols in them so it is best to start with the base octane. With a 30% concentration and 87 octane from the pump you will have more octane than you can get from the pump itself. Xylene burns a bit slower and hotter so you might notice slightly increased engine temperatures and slower throttle response.

Jack
Racetronix