How to use fuel injector puller?

When I was looking for injectors a few months ago,I found Rockauto to have the best price.$24.89 each and they also had the o-ring to suit the 328 injection system

 

Where can one buy replacement threaded (metal or brown plastic) injector carriers?

Of course, these things strip out pretty easily - the original alloy metal carriers are even softer than the brass injectors so they strip out when force is applied in trying to unscrew them from the manifold.... Finding a decent replacement part for a reasonable cost would be very helpful.

Thanks.

 

Cliff,

[I am referring to the FI seating system depicted in post 5 above]


Stripping them out !?!?!?!? Those metal carriers are steel (magnetic), perhaps an alloy, but they are not softer than the aluminum, at least NOT on my car. BE careful my friend.


I am having trouble picturing what is going on here.

I'd bet beer money you don't have to "pull" every injector. Just put a deep socket or regular wrench on the injector and unscrew it, the metal carrier and the "cylindrical" seal will all come out in one piece.

For the ODD injector that has "pushed up" due to a blotted seal and no longer grips the hex hole in the carrier you need to:

A) push the injector down with some force to reengage the carrier (not easy) and then unscrew it, OR

B) "pull" it.


I had only two that needed pulling and am convinced they were origional to my car, seated for over 27 years.



Porsche used nearly the exact same carrier/seal design. It is thin aluminum though and requires milling down the carrier and rubber seal a few millimeters. They are too long.

$13.00 each (P-Car ) w/seal or over $94 each for the Horsey boxed ones .... x 8. (Injector NOT included.)



I am talking to my next door neighbor about making the carriers out of something else that will not rust and look like dog-poop within a month of installation. Right now P-Car is the only answer I have found.

 

Thans for confirm.
but
Let's try this again...

For what car, what model and what year, i'll ask for injectors?

For example:
(I'll walk to local "autovaraosakauppa" here in my country, because autohausAZ have not open their retail on here, and ask: )
"Do you have fuel injectors for my Ferrari 308?"
(and part partseller laugh and says: )
SAY WHAT!?

If I ask:
" Do you have injectors for Mercedes 280?"
(part seller says)
"Here you go all six of them"
(And I'll ask)
"Do you have two extra for safe?"
(Then I ask)
"Can you sel them for extra cheap, since my old Mercedes is classic and I buy two extra?"

"Sure, since you are not those wealthy Ferrari drivers who I can ask double the price..."


That is why it is better to know from what car did also use same parts.

 

Yes but Rockauto.com have them cheaper.

 

I'll have to "second" this question.
I just finished pulling my steel injectors ('80 308), all 8 unscrewed easily using a socket on the injector and the threaded steel..... compression (for lack of a better word) piece came out pretty easily, the injector was held in that tightly. Anyway I need new injectors and the rubber piece also.
Any and all help is greatly appreciated. Walt

 

Sorry for wasting your time. All I did was go in to the parts shop and ask for a Bosch 0437502047. Maybe its more complicated in Finland.

 

"Just put a deep socket or regular wrench on the injector and unscrew it, the metal carrier and the "cylindrical" seal will all come out in one piece"

Mark, thanks, but are you serious???

How many of these have you tried to unscrew in this manner? I assure you, after a bunch of years of heat cycling and corrosion, those metal carriers aren't just unscrewing from the manifold using socket/wrench on the injector. You will find that the injector turns within the carrier, rounding off the internal corners of the carrier and leaving the brass injector unscathed. Soaking with an appropriate penetrant such as WD-40 will improve your hit rate but good luck getting 8 of those out in the manner you describe without destroying the metal carrier - it ain't happenin'. Hence, an appropriate replacement carrier for a reasonable cost would be very helpful. Perhaps others experience is different but my car is a 1982 gtsi and it has alloy carriers (not steel) and brass injectors.

 

I guess I was lucky, all 8 of mine came out with no problems by using a deep socket on the injector itself, my injectors are steel.

 

Ciff,

Dead serious. Mine is an '81. A year older. Your car and mine should be identical.

6 of my eight came right out with a socket and regular wrench. On the other two I used (IIRC) a modified claw hammer sitting on an old shop rag so as not to mare the engine top. Carefull easy pulling and the injector came right out. I used a hex key/wrench to get the carriers out. No issues using some Liquid Wrench Penatrent. Tighten FIRST, THEN loosen.


The injector turns due to the bloating I mention above (gas, heat cycles as you mention, etc.) pushing its hex-nut shape out of the hex hole in the carrier. If you cannot push down hard enough to reengage the injector/hex hole then "YES" you have to "pull."

As to destroying the carrier, I am totally amazed. The manifold is aluminum and my carriers are steel. NO WAY is that carrier going to give up before the manifold.

You dropped a hint: The cars did not come origonally with brass injectors. Steel was OEM (IIRC). THAT might explain your alloy carriers too. If they are not magnetic I bet they are NOT OEM either. I bet someone in the car's past did the old switcher-oo on them.

Actually, I am trying to do the same too as I HATE the damn rust as the origonal carriers will rust in nanoseconds. If your carriers are aluminum or non-ferris I bet I know where they came from ....

Can you post a pic?

 

Walt,

Get the rubber seals from Eurospares or Superformance. Easiest and cheapest probably. Other suppliers in the US have them but they are a bit more expensive. The part number is: 114661


The injector (Bosch: 0437502047) also fits; Fits: 1990 MERCEDES-BENZ 300CE, 1989 MERCEDES-BENZ 300SEL, 1978 MERCEDES-BENZ 280CE, 1983 MERCEDES-BENZ 380SL, 1979 MERCEDES-BENZ 450SL, 1981 MERCEDES-BENZ 280E, and others.

Rockauto or AutohausAZ for the injectors.


Eurospares carries the steel carrier (pn: 114660) for about EU35 each.

 

Thank you very much Mark

 

+1 I had the same experience. With one of my stuck injectors I put a couple of large ball bearings inside a deep socket so that I could still get the socket on the injector flats but could used the bearings to push the injector down into the collar to grab the flats on the collar better. That still didn't work on the other two stuck ones. So, it was use Verell's puller and then an allen wrench on the collar. My collar/carrier pieces were indeed ferrous metal of some sort. I just polished them up then Sharkhided them.

Going back in I used the bearings on the new injector too so as to be sure the collar didn't pull down below the flats on the injector as they tightened. I couldn't find a spec on tightening so I just flushed them with the manifold.

Rick
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Thanks,

No paint on the manifold. Glass beaded with very fine bead at low pressure, washed/flushed well with soapy water then wiped down with lacquer thinner.

Sharkhide? I only use it on pieces that will rust or that have been polished. Very easy to use and works as advertised.

http://www.sharkhide.com/index.html

Rick

 

Every time I order something from States, I get wrong ones, too much of them or all favourite; one short, with couple of crushed beer cans.

No you have not wasted my time, it is good that we got same part number.

In my country we do not have catalogs on partsuplier desk, only computers that you give your car registration number and partsuplier computer check your car VIN and build date from national database and only offer parts that fit your car. These systems do not know exotic cars and since catalogs are very rare these days you can't really know if you got right part, unless you can provide car, year and model like Mercedes 280 1978.

I find that these injector are not found in my country and have price of 45€/each

These injectors are also found in Renault 25 V6 and Reanult 30 Tx

 

Ha Ha ha ha HA!!! Too funny!

those aren't crushed beer cans... those are FORD parts!!
<flame proof underwear on>

Rick

 

IF YOU NEED HELP ordering something from the States, let me know.

45 EU is FU-KIN NUTS.

Mark

 

Brass is highly incompatible with Al. I wouldn't use brass inserts in contact with the manifold because I'd be concerned about galvanic corrosion eating the threads.

 

Here's what's in my 84. 46461.
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Well, I'll be.

I just checked the parts manual as I suggested Mike do (and I was a bit rude in the process, Sorry Mike )

I thought with the QV's they went to the newer design. Maybe it was with the 328.

Again I learned something here.


Can anyone set us straight? What year and what model?