Suggestions for oil pump replacement 4AGZE/GE

[allencr]

Are the stock pump gears made of powdered metal? These guys claim steel & closer tolerance's, no size increase, so if you gotta shim and increase the chance of breakage, this'll help.
...ttp://www.horsepowerfreaks.com/partdetails/Toga/Engine/Oil_Pumps/High_Volume/5127...
http://www.horsepowerfreaks.com/part...gh_Volume/5127

[TERRA Operative]

I thought Toga stopped making oil pumps for the 4AGE?

[DX20VT]

i think the 4A pumps open around 40-50psi when hot?? can't remember..

Hot or cold, the oil pressure relief valve is always set at the same psi.
Just when oil is hot, that it gets thin enough that most engines wont make enough psi to open it.
The relief valve is there to stop over pressure when cold.
Like the early mitsi's that split the oil filter off with too much pressure when revved cold.

I thought Toga stopped making oil pumps for the 4AGE?

A guy from NZ tried to organise a buy for them about a year ago?
and found no stock and they had stopped making them,
so you may find that thye are on the list but not available.

[Billzilla]

Like the early mitsi's that split the oil filter off with too much pressure when revved cold.

FWIW the old rally trick was to get a large screw-clamp and tighten it up around the base of the oil filter to stop that.

[Dangerous Beans]

Thanks for the information.

Ok, looks like there isn't really much to do. I will pull it apart and inspect it, and either get a new one or reuse the old.

Like the early mitsi's that split the oil filter off with too much pressure when revved cold.

You think they would have caught that in testing.