Oil Squirters

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You are gonna need a new oilpump. I reused mine and 3 days later had to replace it. Its a cheap part in the big picture of things, and it gets more expensive after everything is already back in the car.
 
also thats with forged internals?? ..probably get my oil gauge connected... thanks blake i'll probably get the oil pump replaced and the oil squirter at the same time...just had the engine installed 2months ago...
 
You will have to drop the crank out to do the oil jet. It will be a lot easier to do engine out on a stand. You need to remove the pistons and grind away on the relief to make sure there is ample clearance or you will break the tip off again. If the oil jet tip broke off, it was because it was hitting the piston. Forged pistons expand when warmed up and it may clear barely when you look at it but when you start the car it's a different story. I would also rebalance the pistons to within a gram.

Your pistons will be noticeably louder if the oil jet tips are sheared off. I noticed the engine is a lot quieter ever since I fixed the oil jets. Oil jets are there for longevity and cooling purposes. The oil jets lubricate and cool the pistons which can reduce the likelihood of pre-ignition/detonation from piston hot spots. Linux may have run a long time w/o them but he has had trouble advancing timing to MSP like levels likely due to this reason.

I heard the oil jet relief is now finally machined more on the Arias. Too little too late. I would still check to make sure there is AMPLE clearance before going on with assembly on any brand piston.
 
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You will have to drop the crank out to do the oil jet. It will be a lot easier to do engine out on a stand. You need to remove the pistons and grind away on the relief to make sure there is ample clearance or you will break the tip off again. If the oil jet tip broke off, it was because it was hitting the piston. Forged pistons expand when warmed up and it may clear barely when you look at it but when you start the car it's a different story. I would also rebalance the pistons to within a gram.

Your pistons will be noticeably louder if the oil jet tips are sheared off. I noticed the engine is a lot quieter ever since I fixed the oil jets. Oil jets are there for longevity and cooling purposes. The oil jets lubricate and cool the pistons which can reduce the likelihood of pre-ignition/detonation from piston hot spots. Linux may have run a long time w/o them but he has had trouble advancing timing to MSP like levels likely due to this reason.

I heard the oil jet relief is now finally machined more on the Arias. Too little too late. I would still check to make sure there is AMPLE clearance before going on with assembly on any brand piston.

And this is the reason I don't mind paying top dollar for my machine work. They are replacing all the squirters, making sure they have proper clearance for the squirters, notching the block for the fatter rods, balancing, dry filming the bearings and the piston skirts, ceramic coating the piston tops and the chambers.
Plus a load of other things. I do not want to have to go through this again. I spent about 800.00 replacing every possible extraneous part water pump, oil pump, pick up tube, gaskets etc.
 
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I also would use ARP main and head studs and align hone the mains. ACL makes coated bearings for the FS.
Wisecos by far have had the most clearance for oil jets from any piston I have seen and have the skirt coating. Here are pictures from my oil jet fix months ago.

1st Pic AFTER grinding of Arias compared to the stock piston.
2nd Pic BEFORE grinding of Arias compared to the stock piston.
3rd Pic are Wiseco pistons for comparison.
4th Pic completely stock short block oil jet position from the factory.

The relief was grinded to mimic the contour and size of the OEM piston.
Everything was sent to be rebalanced after.
 

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Oh and if you're building a new motor ALWAYS BUY A NEW OIL PUMP!
Cheap insurance for potential headaches down the road.
 
WOW!!!!!! now with that ..can this be the reason for the oil light???

The squirter normally meters the oil through a small hole. If it's missing the hole in that one place is much larger and it's making it harder for the pump to build pressure to reach the top of the engine.

it probably goes out over 1000.. Am I correct?
 
The squirter normally meters the oil through a small hole. If it's missing the hole in that one place is much larger and it's making it harder for the pump to build pressure to reach the top of the engine.

it probably goes out over 1000.. Am I correct?


It isnt consistent..at first it would go off after 3k rpm then another day its 2k rpm and now its up to 4k.....now as I dropped the oil in the pan it was dirty but clean if that makes sense but the oil on the dip stick is brand new...should I be alarmed?

The oil squirter came out while I was driving...dont know if it was torn off or just came loose...the bolt itself is f,.ked up...

Jeremy
 
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It's a pressure fit. I believe that it will not do much damage if it's removed by force. Simply add.
 
So I need to pull the engine?...I dont have a mechanic around that I trust to do this kind of job....how much you think this is going to cost on average....my reg mechanic wants $1200 for the oil pump...might be better off buying a new engine already..
 
w....t....h 1200 thats horrible. Its basically the same as doing a timing belt except you have to drop the main bearing support plate with it...so I guess its not the same at all nvm
 
I might have to contact one of the shops here on the forum and send this car off to get fixed correctly...might send it back to TX..lol just the drive back killed me running open downpipe..
 
I just called and asked my machinist about this and he said all was good with my motor/squirters/arias pistons(stock bore), he automatically checks this and something about keeping a clearance of 60 thou..guess he's saying thousand?

My block is a new factory assembled fs-de short block though...is this an issue or concern ONLY when your rebuilding/over boring/installing new squirters or what?
 
Entire oil pump assembly. Also, saves you the headache of scraping off old RTV and it comes with a new main seal.

If the tips break off the oil jets the oil pressure won't be affected b/c there is a ball/spring inside the base of the oil jet that controls the amount of oil coming out. It just shoots out straight to the side instead of directing it under the piston.
 
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Entire oil pump assembly. Also, saves you the headache of scraping off old RTV and it comes with a new main seal.

If the tips break off the oil jets the oil pressure won't be affected b/c there is a ball/spring inside the base of the oil jet that controls the amount of oil coming out. It just shoots out straight to the side instead of directing it under the piston.


is it possible that the oil pump is bad on my car...I changed out the gears and not the whole assembly...

I just saw a pic you posted earlier in this thread...now my question is with the oil squirter gone...what would this do for oil pressure....would it reduce my oil pressure and cause the light to come on???
 
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