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Gazza96
6th July 2012, 09:58 PM
easy question
is the pump for 4.2 & the 2.8 the same on a GQ

97_gq_lwb
6th July 2012, 10:09 PM
No one has a boost compensator the other doesn't.
Other then that it would be interesting to see if they are different sizes etc.
I have both here and have been meaning to look into it with some help from nissannewby.

nissannewby
7th July 2012, 02:34 PM
I dont think they are. Putting a compensated pump on a 4.2 is common practice and i dont know of anyone that has used the 2.8 pump to do this. If they were the same id imagine it would be common practice. The timing of the pump may also be different to the 4.2, like where in runs with the likes of firing order cam position etc.

johno90
8th July 2012, 09:03 AM
2.8 pump is electronic timing etc as such requires computer and sensors for it to work, internally there are slight differences as well. input shaft is completely different to as they run of a belt not a gear.

97_gq_lwb
8th July 2012, 09:08 AM
2.8 pump is electronic timing etc as such requires computer and sensors for it to work, internally there are slight differences as well. input shaft is completely different to as they run of a belt not a gear.

Think you might be referring to the gu 2.8 pump

Gazza96
8th July 2012, 04:56 PM
Anyone have info on what tools are required to remove pump on a Gq 2.8