Injection pump timing

[SAndreasen]

Is it possible to change the timing without removing the front cover

 

[Chief USA]

I am probably batting way out my league here but are you talking about a 12 or 24 valve.

 

[SAndreasen]

I am probably batting way out my league here but are you talking about a 12 or 24 valve.

25 . Just trying to come up with idea , I wouldn’t think you could but I’ve also read somewhere that you could

 

[Bromiley99]

You can change the timing on a 12v without removing the cover. Can’t play with the timing on 24v pump and gear are keyed only way is with a tuner.

 

[BigPapa]

Actually, the key on the VP pump has some “timing” to it, that’s how they’re calibrated. There are keys with different offsets. That’s why it’s imperative that you use the key that comes with the new pump.

 

[Chief USA]

Just for my proper understanding, isn't VP44 pump timing affected by tuners such as the Edge EZ. I was under the perception that the EZ was a timing only box? Or am I not correctly understanding how it works?

 

[BigPapa]

Just for my proper understanding, isn't VP44 pump timing affected by tuners such as the Edge EZ. I was under the perception that the EZ was a timing only box? Or am I not correctly understanding how it works?

You are correct.

 

[SAndreasen]

Just for my proper understanding, isn't VP44 pump timing affected by tuners such as the Edge EZ. I was under the perception that the EZ was a timing only box? Or am I not correctly understanding how it works?

yes but I’ve read that you can change the gear one tooth and have an affect on timing

 

[SAndreasen]

You are correct.

Is there any possibility of the gear being turned a tooth without pulling the front cover ? And if it was would that affect what the computer does

 

[BigPapa]

If you moved the gear a tooth, it probably wouldn't run. The gear has to be aligned properly and the woodruff key with the correct offset must be used. The only way to adjust timing is with a programmer.

The number for the correct key is stamped on the pump.

 

[SAndreasen]

If you moved the gear a tooth, it probably wouldn't run. The gear has to be aligned properly and the woodruff key with the correct offset must be used. The only way to adjust timing is with a programmer.

The number for the correct key is stamped on the pump.

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ok I sent the pump back and they checked it out said it was good came with a new key . I just don’t know how it could’ve got off timing ? In the words of Tony beats it ran the day they shut it off