From: muzician21 on
89 Cressida w/7MGE - I just started seeing my oil pressure light going
on today at low rpm - basically below about 800 rpm, particularly when
in gear. Assuming the sensor is correct, is there any reason for this
besides the oil pump? The engine only has about 40k miles since a
rebuild, re-used the old oil pump which I assume is the original. Car
has about 150k miles on it.

What's the life expectancy of these pumps?

Besides Ebay any good source for parts? Dealer wants most of $300 for
one, the auto parts places apparently don't have it.

Thanks for all input.
From: Jeff Strickland on

"muzician21" <muzician21(a)yahoo.com> wrote in message
news:fe305f70-bdc0-47e5-9f45-c483b2df943f(a)w19g2000yqk.googlegroups.com...
> 89 Cressida w/7MGE - I just started seeing my oil pressure light going
> on today at low rpm - basically below about 800 rpm, particularly when
> in gear. Assuming the sensor is correct, is there any reason for this
> besides the oil pump? The engine only has about 40k miles since a
> rebuild, re-used the old oil pump which I assume is the original. Car
> has about 150k miles on it.
>
> What's the life expectancy of these pumps?
>
> Besides Ebay any good source for parts? Dealer wants most of $300 for
> one, the auto parts places apparently don't have it.
>
> Thanks for all input.


Worn out bearings and seals cal let the oil pressure drop.

The rule of thumb is that you need 10psi of pressure for every 1000 rpm.







From: Mike Hunter on
As well as worn main bearings


"Jeff Strickland" <crwlrjeff(a)yahoo.com> wrote in message
news:hekf4a$j8c$1(a)news.eternal-september.org...
>
> "muzician21" <muzician21(a)yahoo.com> wrote in message
> news:fe305f70-bdc0-47e5-9f45-c483b2df943f(a)w19g2000yqk.googlegroups.com...
>> 89 Cressida w/7MGE - I just started seeing my oil pressure light going
>> on today at low rpm - basically below about 800 rpm, particularly when
>> in gear. Assuming the sensor is correct, is there any reason for this
>> besides the oil pump? The engine only has about 40k miles since a
>> rebuild, re-used the old oil pump which I assume is the original. Car
>> has about 150k miles on it.
>>
>> What's the life expectancy of these pumps?
>>
>> Besides Ebay any good source for parts? Dealer wants most of $300 for
>> one, the auto parts places apparently don't have it.
>>
>> Thanks for all input.
>
>
> Worn out bearings and seals cal let the oil pressure drop.
>
> The rule of thumb is that you need 10psi of pressure for every 1000 rpm.
>
>
>
>
>
>
>


From: Steve Austin on
muzician21 wrote:
> 89 Cressida w/7MGE - I just started seeing my oil pressure light going
> on today at low rpm - basically below about 800 rpm, particularly when
> in gear. Assuming the sensor is correct, is there any reason for this
> besides the oil pump? The engine only has about 40k miles since a
> rebuild, re-used the old oil pump which I assume is the original. Car
> has about 150k miles on it.
>
> What's the life expectancy of these pumps?
>
> Besides Ebay any good source for parts? Dealer wants most of $300 for
> one, the auto parts places apparently don't have it.
>
> Thanks for all input.

Lol. Got a Fram filter on it? (As I duck for cover)
From: Jeff Strickland on
Didn't I say that?



"Mike Hunter" <Mikehunt2(a)lycos,com> wrote in message
news:4b0dc35b$0$19746$ce5e7886(a)news-radius.ptd.net...
> As well as worn main bearings
>
>
> "Jeff Strickland" <crwlrjeff(a)yahoo.com> wrote in message
> news:hekf4a$j8c$1(a)news.eternal-september.org...
>>
>> "muzician21" <muzician21(a)yahoo.com> wrote in message
>> news:fe305f70-bdc0-47e5-9f45-c483b2df943f(a)w19g2000yqk.googlegroups.com...
>>> 89 Cressida w/7MGE - I just started seeing my oil pressure light going
>>> on today at low rpm - basically below about 800 rpm, particularly when
>>> in gear. Assuming the sensor is correct, is there any reason for this
>>> besides the oil pump? The engine only has about 40k miles since a
>>> rebuild, re-used the old oil pump which I assume is the original. Car
>>> has about 150k miles on it.
>>>
>>> What's the life expectancy of these pumps?
>>>
>>> Besides Ebay any good source for parts? Dealer wants most of $300 for
>>> one, the auto parts places apparently don't have it.
>>>
>>> Thanks for all input.
>>
>>
>> Worn out bearings and seals cal let the oil pressure drop.
>>
>> The rule of thumb is that you need 10psi of pressure for every 1000 rpm.
>>
>>
>>
>>
>>
>>
>>
>
>