big block chevy fueling for your IDIT+!!

[IDIBRONCO]

Never done one of those aggravating things? Where the rod wants to slide down and you can't get the new pump in place? Until some old timer tells you about the bolt trick that holds the rod up in place. The good old days.

What worked for me was, assuming that you had the cover off too, putting some grease on one end of the rod and sticking that end into the block. That would hold the rod up long enough the get the plate and pump back on the engine.

 

[IDIoit]

Never done one of those aggravating things? Where the rod wants to slide down and you can't get the new pump in place? Until some old timer tells you about the bolt trick that holds the rod up in place. The good old days.

all this time, noone ever showed you the magnet trick??
you know those round headed magnets on a handle?
i have a 5/16" head on one that fits in that hole perfectly!

 

[david85]

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Sweet truck! Same paint scheme as mine.

 

[BullDiesel]

After about a thousand miles the pump arm broke. Looks like it’s from the constant pressure it was under as the arm was pressed against the cam lobe more than I liked were it would always be pulling the diaphragm up and never let it go down all the way.

 

[BullDiesel]

But on a better note found out that the original pump arm fits perfectly in the Big block pump housing with no modifications to the pump arm. Ended up drilling and taping the ends for set screws just in case the pin tries to move around shouldn’t as it’s pressed in there pretty good.

 

[jwsfarrier]

Thats awesome! What was the original pump you got the arm from?

 

[IDIBRONCO]

I believe that's a IDI lift pump arm.

 

[jwsfarrier]

So if I understand correctly you can just remove the arm from a pump that fits the IDI and fit it to the big block pump as is ?

 

[IDIBRONCO]

I'll have to let Bulldiesel explain farther, but basically, yes.

 

[jwsfarrier]

thank you, appreciate the info.

 

[Clb]

Hopefully it is a direct duplicate of the arm design inside of the new pump.

As long as the part from the idi arms pivot pin to inside the new pump matches the pump and original arm, in all dimensions AND the part from mounting flange inside the eng. Matches the idi internally.
That would be a winner.
@BullDiesel
Do you follow that?
Hopefully you can just get some cores to play with...
Good luck

 

[hce]

So how are you verifying the diaphragm is not being extended to far up or down or the arm is binding in the fuel pump housing when being actuated by the idi eccentric?

 

[wix51085]

New to the forum and have been spending the last 5 days or so trying to treat e fuel swap like i’m putting a man on the moon. Then I stumbled on the post.

Any updates?? I fall in to the 99% IDIoit talks about with my wallet but I’m considering trying the same thing with this frankenpump. I was already going to be spending several hundred on efuel anyways. I’d rather stay mechanical.

 

[KansasIDI]

I don’t know. I haven’t heard from @IDIoit since end of January. I’m sure he’s busy with something. Hopefully he’s doing well.

 

[Clb]

But on a better note found out that the original pump arm fits perfectly in the Big block pump housing with no modifications to the pump arm. Ended up drilling and taping the ends for set screws just in case the pin tries to move around shouldn’t as it’s pressed in there pretty good.

Any forward momentum ?