[daveguy3]

Does anybody know what (low oil pressure #) causes the oil light to come on in a 65 ford mustang. My light comes on (sometimes flickering) and sometimes solid after the car in fully warmed up. I'm using 10-30 oil. Is this a problem, or is it normal?

 

[ujt389]

Yes, it should be check out. What I would do first is hook up a mechanical gauge and wee what the actual pressure is. They come on at a pretty low pressure.

 

[thekingofazle]

I think it's 7psi. You should check that with a mechanical gauge, to be safe. Your sender could be bad, or gummed up. You can just pull the sender and plumb in a cheapie autozone or NAPA mechanical gauge right at the engine just to check. If it's ok, try a new sender.

 

[daveguy3]

Thanks for the tip. I replace the the sender, and I still get the same result. Does that means the crank bearings are shot?

 

[1965coupe]

it means you have an oil problem, it could be many things including bearings but there is a whole list of things

 

[FEandGoingBroke]

How many mmmmmmiles on it?


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<font size=-1>[ This Message was edited by: FEandGoingBroke on 4/17/06 7:58am ]</font>

 

[daveguy3]

Don't know the miles, I've only had it for the last three years. I get smoke on starting, but not much while driving or acceleration. It seems to have plenty of power, but oil consumption is high. I found that the pan bolts were loose so I tightened them, not sure if that helped yet though. I use 10-30 weight should I go to higher weight oil? Can the oil pump go bad?

A long time ago I had a 67 cougar, almost new 302 and I do remember the oil light coming on occasionally at a stop, but not all the time.

 

[Beoweolf]

change the oil filter. Use a good brand, like WIX, Mobil one Pro, not the daily special at Wal-Mart, Checkers or Auto Zone. The bypass in the filter can sometimes be faulty.

If you don't know the milage, then its probably high and it just may be time to start saving up for a rebuild.

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<font size=-1>[ This Message was edited by: Beoweolf on 4/17/06 11:09pm ]</font>

 

[CaptVirgilHilts]

Try going to a 10W40 on your next oil change or if it is a fair weather car only a straight 40 weight if you can find it. When you get the light flicker do you check the oil? Low oil can give you a flicker under hard decel or accel if the pump slurps air. You may also want to check and replace the valve seals if the motor has lots of miles. Check the pressure as others have mentioned first because if the motor is worn bad then no point in wasting too much effort and cash though. Stu

 

[daveguy3]

No flickers under accel or decel. I will try the 10-40 with mobil filter and see what happens. How many $'s should I budget for a rebuild. I noticed there are remanufactured engines out there with warantees that go for $1,500 to $2,200 is that a good way to go. If I go to a local machine shop how much would I pay? I want a good street motor with a little more than average cam (in fact I have a NOS ford racing cam that is supposed to be one up from stock). Do I need to go to expensive pistons and rods to have fun on the street? The car is driven as a daily driver in the summer and occasionally in the winter. I have also put in a tci torque coverter and a shift kit in the c4.

 

[bluelightning302]

mine turns on once its fully warm so i suspect the engine is pretty much done for,but i runs fine and doesnt smoke,but once its warm it makes a chattering noise which i suspect is the lifters.Do you guys think bad lifters are causing low pressure,or is the low pressure just killing the lifters??

 

[bluelightning302]

anybody else have any suggestions?

 

[daveguy3]

Mine comes on after the engine is warm, when stopped at idle. No big smoke, but big oil usage. No funny noises at all, maybe a little at start up sometimes, but that's all.

 

[bluelightning302]

so does everybody think this is the rod bearings or are there any other things that it could be?