"NJPainter" <vuso77@yahoo.com> wrote in message
news:1160601706.013881.141350@h48g2000cwc.googlegr oups.com...
>
> THe Valve cover and gasket is just because it needs it.
>
> He said he was going to clean out the "Returns". I've heard of this
> before.
>
> Yes, when I restart it, after warm, the pressure goes to zero.
>

If the returns are plugged with sludge, then it could keep the oil from
returning to the pan and cause the low pressure reading. I have seen the
returns plug up on a few engines, but it is normally caused from severe
neglect of oil changes, coupled with lots of short trips that prevent the
engine from reaching operating temperature. I agree with the others, put a
mechanical gage on it first, and see what you get. It is possible that the
sending unit craps out when hot, or there is some other temperature related
electrical failure happening. I'm sure the gage will be cheaper than the
cleaning job from your mechanic.

Chris

 

"NJPainter" <vuso77@yahoo.com> wrote in message
news:1160601706.013881.141350@h48g2000cwc.googlegr oups.com...
>
> THe Valve cover and gasket is just because it needs it.
>
> He said he was going to clean out the "Returns". I've heard of this
> before.
>
> Yes, when I restart it, after warm, the pressure goes to zero.
>

If the returns are plugged with sludge, then it could keep the oil from
returning to the pan and cause the low pressure reading. I have seen the
returns plug up on a few engines, but it is normally caused from severe
neglect of oil changes, coupled with lots of short trips that prevent the
engine from reaching operating temperature. I agree with the others, put a
mechanical gage on it first, and see what you get. It is possible that the
sending unit craps out when hot, or there is some other temperature related
electrical failure happening. I'm sure the gage will be cheaper than the
cleaning job from your mechanic.

Chris

 

Probably an electrical problem because commuting regularly with zero
oil pressure would have already destroyed your engine.


NJPainter wrote:
> THe Valve cover and gasket is just because it needs it.
>
> He said he was going to clean out the "Returns". I've heard of this
> before.
>
> Yes, when I restart it, after warm, the pressure goes to zero.

 

Probably an electrical problem because commuting regularly with zero
oil pressure would have already destroyed your engine.


NJPainter wrote:
> THe Valve cover and gasket is just because it needs it.
>
> He said he was going to clean out the "Returns". I've heard of this
> before.
>
> Yes, when I restart it, after warm, the pressure goes to zero.

 

Probably an electrical problem because commuting regularly with zero
oil pressure would have already destroyed your engine.


NJPainter wrote:
> THe Valve cover and gasket is just because it needs it.
>
> He said he was going to clean out the "Returns". I've heard of this
> before.
>
> Yes, when I restart it, after warm, the pressure goes to zero.

 

Perhaps I missed something..

Did the mechanic, or the back up mechanic, ever put a mechanical pressure
gauge on the engine or are you relying on the dash gauge?


"c" <c@me.org> wrote in message
news:1tdXg.13182$cc3.2872@tornado.rdc-kc.rr.com...
>
> "NJPainter" <vuso77@yahoo.com> wrote in message
> news:1160601706.013881.141350@h48g2000cwc.googlegr oups.com...
>>
>> THe Valve cover and gasket is just because it needs it.
>>
>> He said he was going to clean out the "Returns". I've heard of this
>> before.
>>
>> Yes, when I restart it, after warm, the pressure goes to zero.
>>
>
> If the returns are plugged with sludge, then it could keep the oil from
> returning to the pan and cause the low pressure reading. I have seen the
> returns plug up on a few engines, but it is normally caused from severe
> neglect of oil changes, coupled with lots of short trips that prevent the
> engine from reaching operating temperature. I agree with the others, put a
> mechanical gage on it first, and see what you get. It is possible that the
> sending unit craps out when hot, or there is some other temperature
> related electrical failure happening. I'm sure the gage will be cheaper
> than the cleaning job from your mechanic.
>
> Chris
>

 

Perhaps I missed something..

Did the mechanic, or the back up mechanic, ever put a mechanical pressure
gauge on the engine or are you relying on the dash gauge?


"c" <c@me.org> wrote in message
news:1tdXg.13182$cc3.2872@tornado.rdc-kc.rr.com...
>
> "NJPainter" <vuso77@yahoo.com> wrote in message
> news:1160601706.013881.141350@h48g2000cwc.googlegr oups.com...
>>
>> THe Valve cover and gasket is just because it needs it.
>>
>> He said he was going to clean out the "Returns". I've heard of this
>> before.
>>
>> Yes, when I restart it, after warm, the pressure goes to zero.
>>
>
> If the returns are plugged with sludge, then it could keep the oil from
> returning to the pan and cause the low pressure reading. I have seen the
> returns plug up on a few engines, but it is normally caused from severe
> neglect of oil changes, coupled with lots of short trips that prevent the
> engine from reaching operating temperature. I agree with the others, put a
> mechanical gage on it first, and see what you get. It is possible that the
> sending unit craps out when hot, or there is some other temperature
> related electrical failure happening. I'm sure the gage will be cheaper
> than the cleaning job from your mechanic.
>
> Chris
>

 

Perhaps I missed something..

Did the mechanic, or the back up mechanic, ever put a mechanical pressure
gauge on the engine or are you relying on the dash gauge?


"c" <c@me.org> wrote in message
news:1tdXg.13182$cc3.2872@tornado.rdc-kc.rr.com...
>
> "NJPainter" <vuso77@yahoo.com> wrote in message
> news:1160601706.013881.141350@h48g2000cwc.googlegr oups.com...
>>
>> THe Valve cover and gasket is just because it needs it.
>>
>> He said he was going to clean out the "Returns". I've heard of this
>> before.
>>
>> Yes, when I restart it, after warm, the pressure goes to zero.
>>
>
> If the returns are plugged with sludge, then it could keep the oil from
> returning to the pan and cause the low pressure reading. I have seen the
> returns plug up on a few engines, but it is normally caused from severe
> neglect of oil changes, coupled with lots of short trips that prevent the
> engine from reaching operating temperature. I agree with the others, put a
> mechanical gage on it first, and see what you get. It is possible that the
> sending unit craps out when hot, or there is some other temperature
> related electrical failure happening. I'm sure the gage will be cheaper
> than the cleaning job from your mechanic.
>
> Chris
>

 

c wrote:
> "NJPainter" <vuso77@yahoo.com> wrote in message
> news:1160601706.013881.141350@h48g2000cwc.googlegr oups.com...
>>
>> THe Valve cover and gasket is just because it needs it.
>>
>> He said he was going to clean out the "Returns". I've heard of this
>> before.
>>
>> Yes, when I restart it, after warm, the pressure goes to zero.
>>
>
> If the returns are plugged with sludge, then it could keep the oil
> from returning to the pan and cause the low pressure reading. I have
> seen the returns plug up on a few engines, but it is normally caused
> from severe neglect of oil changes, coupled with lots of short trips
> that prevent the engine from reaching operating temperature. I agree
> with the others, put a mechanical gage on it first, and see what you
> get. It is possible that the sending unit craps out when hot, or
> there is some other temperature related electrical failure happening.
> I'm sure the gage will be cheaper than the cleaning job from your
> mechanic.

I'm not a fan of oil additives like lucas (or any additives in fact).
Lucas makes the oil tend to cling to parts, which in turn robs it
from the oil sump. It can also cause it to stick to the engine walls
and bake, forming sludge. Not sure how well it works though a filter.
Generally the consensus is, if it was good for the engine the oil vendors
would already have it in the mix.

Do the mechanical gauge. Also check the oil pressure senders return wire
for kinks/burns/chafe. 0psi is <1 ohm to ground which is usually a short
or a bad sender. You can measure the sender with a digital multimeter.
Just go between the pin and the engine block. If it's measuring
0 psi = 1 Ohm
40 psi = 32.5 Ohm
80 psi = 87 Ohm

When it's warm and the pressure indicating zero, check the dipstick
and see what the level actually is. You will know then if it's being
held up in the valve cover. (actually the valve cover can not contain
that much oil without blowing it into the intake. Look down the oil
fill cap.

You can clean out the oil system using sea-foam from NAPA, and a few
oil changes. Figure which one is worth more, your time or money.

--
DougW

 

c wrote:
> "NJPainter" <vuso77@yahoo.com> wrote in message
> news:1160601706.013881.141350@h48g2000cwc.googlegr oups.com...
>>
>> THe Valve cover and gasket is just because it needs it.
>>
>> He said he was going to clean out the "Returns". I've heard of this
>> before.
>>
>> Yes, when I restart it, after warm, the pressure goes to zero.
>>
>
> If the returns are plugged with sludge, then it could keep the oil
> from returning to the pan and cause the low pressure reading. I have
> seen the returns plug up on a few engines, but it is normally caused
> from severe neglect of oil changes, coupled with lots of short trips
> that prevent the engine from reaching operating temperature. I agree
> with the others, put a mechanical gage on it first, and see what you
> get. It is possible that the sending unit craps out when hot, or
> there is some other temperature related electrical failure happening.
> I'm sure the gage will be cheaper than the cleaning job from your
> mechanic.

I'm not a fan of oil additives like lucas (or any additives in fact).
Lucas makes the oil tend to cling to parts, which in turn robs it
from the oil sump. It can also cause it to stick to the engine walls
and bake, forming sludge. Not sure how well it works though a filter.
Generally the consensus is, if it was good for the engine the oil vendors
would already have it in the mix.

Do the mechanical gauge. Also check the oil pressure senders return wire
for kinks/burns/chafe. 0psi is <1 ohm to ground which is usually a short
or a bad sender. You can measure the sender with a digital multimeter.
Just go between the pin and the engine block. If it's measuring
0 psi = 1 Ohm
40 psi = 32.5 Ohm
80 psi = 87 Ohm

When it's warm and the pressure indicating zero, check the dipstick
and see what the level actually is. You will know then if it's being
held up in the valve cover. (actually the valve cover can not contain
that much oil without blowing it into the intake. Look down the oil
fill cap.

You can clean out the oil system using sea-foam from NAPA, and a few
oil changes. Figure which one is worth more, your time or money.

--
DougW