Help removing a stuck pencil injector on a 310

I have a 1971 Oliver 1955. The wear ring in the injection pump broke. So I decided since the pump was being rebuilt it would be a good time for some new injectors. All of them came out but the dreaded one! And of coarse its behind the turbo. I was wondering if the OTC pullers fit in those small grooves or under the round body? I can and will remove the manifold and turbo if need be. If anyone has a tried and true way of removing them that works or just a great idea it would be appreciated. Thanks and Thank You to YT for this site.
 
I would remove the manifold to gain full access to that injector.
That way you can grab it with a pair of pliers and try to break the hold by twisting it back and forth.Chances are that's all that's needed. pry it up with a pry bar on both sides.
You may have to work it up and down a few times using penetrating oil as a lube.
If that wont loosen it then i would break the plastic seal ring where the injector meats the head and squirt penetrating oil between bore and injector and let it sit for a day, give it a few smart taps with a hammer and try again.
 
Google OTC 7121 as that should be the puller you need. If you use the puller, you shouldn't need to pull the manifold and it's much easier on the injector than prying and twisting them.

As a tip, make sure to get the bores as clean as possible before installing new injectors to make sure the carbon dams seal.
 
As mentioned make sure the hole is clean when installing the injectors, a 3/8 drill bit works well. Also check the condition of the hold down springs, if weak the top compression seal will leak, and the carbon dam will blow for sure as it does not hold compression, then allows carbon buildup between the head and injector. If resealing good used injectors make sure the top compression seal is the right one, Stanadyne has several thickness sizes available, if one is used that is too thin the carbon dam will blow..
 
Great explanation! This is excellent advice for people who haven't replaced these injectors before.
 
Isn't there a tool that is used to clean (sort of like ream) the injector hole to ensure that the hole and the bottom are clean? It seems as though I have used one of those a long time ago on a 2-70 diesel...?

Regards,

Goldsburg
 

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