Injection pump......

[4bogginchevys]

I pulled an injection pump off of a 83 6.2 civy blazer at the local junkyard. Never having done this I was in for a bit of a surprise how time consuming it was going to be. when I started it was complete as if the truck had just left the road, probably why it took an hour and a half to get it off! My question: I was gentle as could be to slide it rearward off of the studs, and some prying was required....more than I think would be normal. When it was pulled off, looking at the hole in the injection pump that would normally be against the back of the timing cover, I can see the bearings the the shaft coming out of the timing cover rearward would ride on......but the shaft stayed in the timing cover and didn't want to come out....it looked like it came apart right to me but since i've never done a removal of one, I dont really know what i'm looking at. basically i'm trying to make sure I didn't break a cardinal rule, of disassembly and miss some hidden retainer clip somewhere and that the pump I got is not missing something(shaft that comes out of timing cover). Also, are there any cover plates that can be removed to check the condition of the pump? It still has pink marking goo on all of the critical adjustment points, is that factory or does it indicate it been tweaked/ rebuilt? Thanks in advance

 

[acmunro]

You should have removed the oil filler neck - rotated the engine by hand - and removed the three bolts on the IP drive gear (only one bolt is in the "window" at a time) The shaft should have come out with the IP

 

[lavarok]

There are three bolts that attach the shaft of the injection pump to the engine gear. To access, you need to remove the oil filler tube. Carefully remove the three bolts without dropping them down into the engine. Once these are removed and the mounting nuts are removed the IP should slide out.

See the attached diagram.

 

[4bogginchevys]

so is it fixable?

 

[FMJ]

oops. . .

 

[acmunro]

I'm not sure if it's something you could repair yourself - I have a couple old pumps that are bad lying around that I am going to tear apart - Just never got around to it.

 

[m38inmaine]

A reman can be had for $325, and they have all the upgrades. For the amount of work involved to change one(done 5 myself)I would not take the chance on a used one. There are new anti drain back valves etc that make the new one much better. Must have been one **** of a pry session getting that out!

 

[4bogginchevys]

small screw driver!

A reman can be had for $325, and they have all the upgrades. For the amount of work involved to change one(done 5 myself)I would not take the chance on a used one. There are new anti drain back valves etc that make the new one much better. Must have been one **** of a pry session getting that out!

I actually didn't have to pry toooo bad....do you have a part # for good/built IP, and source? I only paid 13.00 for this one used. ok ok, I did commit a cardinal sin......next time I will ask first!

 

[Recovry4x4]

I would venture to say that if you didn't remove the drive gear, you did damage your $13 pump.

 

[m38inmaine]

I'm pretty sure this is where I got my last one and it is the best one I ever got.

HD 6.2L Diesel Injection Pump 6.2 Chevy GMC Injector:eBay Motors (item 280409783412 end time Jan-11-10 20:02:51 PST)

 

[Crash_AF]

Hi Mark,
I'm in need of having my 1009's injection pump resealed because the throttle shaft seals are shot and the leak is getting worse. I've been contemplating finding a local shop to do the work, but that looks like a really good price for a reman'ed pump. How well did they handle the shipping of the pump and refund of the core charge?

Later,
Joe

 

[HardCorps79]

Hi Mark,
I'm in need of having my 1009's injection pump resealed because the throttle shaft seals are shot and the leak is getting worse. I've been contemplating finding a local shop to do the work, but that looks like a really good price for a reman'ed pump. How well did they handle the shipping of the pump and refund of the core charge?

Later,
Joe

How old is the pump? The throttle shaft seals are really not that hard to change, but chances are if they are going other stuff in there is going, too. Throttle shaft seals are only a couple of bucks from Stanadyne, and if i recall correctly, there's some place in Oregon that sells them online. You have to take off the intake manifold to be able to slide the throttle shaft out, but you don't have to mess with removing the pump. Should hold you for a while if you don't want to do the rebuild.

A Stanadyne shop will do a complete "factory" rebuild for around $400. So anything less than that from a reputable company would be a good deal, in my book. I've heard good things about kr services (the listing on ebay).

 

[Crash_AF]

As far as I know, the pump is the original 1985 pump. It leaks like a sieve when it's off to the point that it's hard starting in the morning. The quote I got from a local shop was $5-550 so if the consensus is that kr is a good vendor, I'll probably be ordering a pump from them after the new year.

Later,
Joe

 

[kipman]

You are a prying machine to get that apart that way.

 

[kipman]

I have been wanting to try kr services myself, anybody use them?

 

[m38inmaine]

It was a quick turn around time, probably a week. The pump I got looked factory new and is the best performing rebuild I have gotten to date.