High volume oil pump.

[87we410877]

what is involved in putting a high volume oil pump from ATR in? from start to finish.

 

[Red Regal T]

You should be able to purchase a Melling HV oil pump in your neighborhood for about $35 or so. I'm not familiar with what ATR sells. Best way to install it is to remove the timing chain cover, but it is possible to install it with TC cover on the car. Part # is K-201HV

 

[87we410877]

how about the install? do i have to raise the motor pull the motor anything?

 

[frankg]

Why do you want to install a HV set?? No that it's totally bad but why? Frank

 

[buickpower]

ATR just sells the Melling kit. It's a hell of a lot easier to do correctly when the timing cover is off, like John said. If you don't take it off, you will have to at least jack up the front of the car so that you can work from underneath. You will have to drill 2 holes to install the roll pins that hold in the spacer plate, which accomodates the taller gears. There are 6 bolts that hold on the oil pump cover, the back ones are tough to get to, and space is cramped. You'll see what I mean if you jack up the car and look under there. It's alot easier to do a good job on a bench, where you can drill the holes easily and you are able to use a torque wrench on the pump cover bolts. But with that said, you have to go through the extra work of taking off the timing cover. You'll have to decide after you jack up the car.

 

[87we410877]

Why do you want to install a HV set?? No that it's totally bad but why? Frank

I have 3 PSI at idle and about 25 at wot. It has always been low like around 10psi at idle and progressivly getting worse. I run 25-50 also .

 

[87we410877]

ATR just sells the Melling kit. It's a hell of a lot easier to do correctly when the timing cover is off, like John said. If you don't take it off, you will have to at least jack up the



Thanks alot. Im a fan of doing things the correct way. Must have something to do with being an aircraft mechanic. I will take the timing case off and get that sucker in there. thanks again.

 

[frankg]

If i was you i would put new standard gears in it with a Melling P-20I thrust plate that can be done in the car. If your psi isn't correct after this you either need a new front cover or your bearings in the engine might be bad. If you pull the gears out and the housing around them or above them is scared up you need a cover and a HV kit will not help. Frank

 

[Red Regal T]

[



Thanks alot. Im a fan of doing things the correct way. Must have something to do with being an aircraft mechanic. I will take the timing case off and get that sucker in there. thanks again.

If I were you, I'd pull down the oil pan and have a look at your bearings. Sounds like they may be toast. It's just as easy to change out the main and rod bearings as R&R the timing cover and oil pump.

 

[87we410877]

If I were you, I'd pull down the oil pan and have a look at your bearings. Sounds like they may be toast. It's just as easy to change out the main and rod bearings as R&R the timing cover and oil pump.

I hope thats not the case. The motor was just built in Mayland and only has 3200 miles on it. My timing case is modified, i dont know if that would effect the oil pressure. Its also bored .030 over and has cast iron heads with bigger valves and a cam. And also which plate are you talking about that might be worn. thanks alot.

 

[sumnerw]

FWIW, some users of HV oil pumps (including me) have observed significant wear of the #1 camshaft bearing, probably because of the increased load the HV pump places on the cam. Keep an eye on it and if you replace it, go with the HD bearings that TA performance sells.

Good luck,
Buzz White in Houston, TX

 

[Red Regal T]

I hope thats not the case. The motor was just built in Mayland and only has 3200 miles on it. My timing case is modified, i dont know if that would effect the oil pressure. Its also bored .030 over and has cast iron heads with bigger valves and a cam. And also which plate are you talking about that might be worn. thanks alot.

Well, if oil pressure is getting lower and lower, sounds like bearing wear to me. I could be wrong, but it's not much trouble to go in and look. If you're bearings are undamaged, at least you'll know that's not the problem. Only takes about an hour to get in for a look.

Worn plate refers to the bottom piece of the oil pump. If it is scored badly, loss of oil pressure will ensue.

Just because the motor was just redone, doesn't mean everything was done correctly. I had a crank machined once, put it in, and within 500 miles started to hear faint knocking. Incorrect machining. Had to pull it and replace the crank.

 

[87we410877]

thanks alot guys
i'll check into it.