Fuel injector question

[ttsrq]

So I bought some 650cc FIC ball style fuel injectors from the classifieds on here and when I opened the box I saw that the bottom seals on the top of the injectors are all cracked and broken. So I managed to get ahold of some newish seals in very good condition but they are for the stock injectors. My question is are they the same seals? They look indentical but while fitting it over the top of the injector the new ones don't feel quite as tight, it may be possible the old ones just shrunk and they feel tighter. Can any one confirm they are the same?

 

[jeffo]

In most cases, no. It all depends who did the machine work, FIC, PTE, AFI, etc. They all do it slightly differently and use different O-rings. Are there any markings on them? Can you take a picture?
keydiver

 

[ttsrq]

I took pictures I will upload them when I get home.they have fic 650 engraved onto the side and rp symbol on the plug in spot I'm assuming they are rochester products and fic did the work to them. I just need new bottom seals at the top of the injectors

 

[ttsrq]

Are the lower top injector seals the same as stock?

 

[Anger890]

Are the lower top injector seals the same as stock?

No, FIC uses a special seal, been there done that you will need to get a hold of FIC and purchase a seal kit:

Complete Seal Kit for FIC 125/6 DSM & Evo and 226 BlueMAX injectors.

 

[ttsrq]

Dammit I swear they would fit but it looks like the top part of the injector was machined down slightly just so the OEM seals could not be used!

 

[Splitpi]

If the seals are bad, then it is highly likely that the injectors need a good cleaning. If you send the injectors off for cleaning they'll return them with new seals.

Check out:
Advanced Fuel Injection
RC Fuel Injection


I have used Advanced and FIC but all should give you good results.

 

[95420A]

It's always a good idea to use the correct seals. Remember when dealing with a DSM "almost" never cut's it and you will just end up replacing it again. Do it right the first time