Oil Pressure, again.

[jibberjabber]

The first page is from the petrol 100 FSM, and the second is from the diesel 100 FSM.

With regard to the oil pressure 'at idle' I presume there must be a 'typo'

 

[clivehorridge]

I’d say no typo, my 1HZ delivers about 6lb pressure at idle (hard to gauge it really, being so low).

On the needle, it shows a hair under 0.5 Bar.

There’s no need for high pressure at idle anyway.

 

[jibberjabber]

I’d say no typo, my 1HZ delivers about 6lb pressure at idle (hard to gauge it really, being so low).

On the needle, it shows a hair under 0.5 Bar.

There’s no need for high pressure at idle anyway.

If you compare both pages one says 4.2 psi and the other says 43 psi 'at idle' so I think it must be a Toyota typo as all other values are very similar 'at idle'

'Toyota Typo', could be the name of their next (dare I say it) electric car

 

[Towpack]

I don’t think it is a typo. The 1HD-FT manual gives the same min figures at idle and 36-87 psi at 3k. Mine shows 21 psi at idle stinking hot (on a seperate mechanical capillary gauge) which equates to the second mark up on the OEM gauge. The 1H series are very old design lazy engines in quite a low state of tune and can obviously survive on quite low oil pressure compared to modern highly tuned units running huge boost and injection pressures to get more power from engines half the size. JMO

 

[uHu]

I see the typo on the PSI value for the diesel idle. That's clear. Is that the point of the thread?

 

[jibberjabber]

I see the typo on the PSI value for the diesel idle. That's clear. Is that the point of the thread?
View attachment 160837

Yep,

Hit the nail on the head. 29 Kilopascal is not 43 psi

Could be very confusing for a novice.

The reason I raise the point, is that I was sitting at the lights wating for them to change yesterday, and happend to glance at the oil pressure guage (as you do) it was on the lowest mark, and when I saw 43 psi at idle in the FSM for a Diesel, and 4.2 psi for the Petrol, I thought there must be something wrong, then I realised it was a misprint and should read 4.3 psi at idle not 43psi for a Diesel.

Just thought I'd make some Jibber Jabber.

 

[jibberjabber]

I see the typo on the PSI value for the diesel idle. That's clear. Is that the point of the thread?
View attachment 160837

I suppose I should have entitled the thread 'Spot the Difference, Oil Pressure'

 

[clivehorridge]

I suppose I should have entitled the thread 'Spot the Difference, Oil Pressure'

maybe, I presumed you were querying why it was so low. I didn’t spot the difference

 

[jibberjabber]

maybe, I presumed you were querying why it was so low. I didn’t spot the difference

My pressure is going to be a slightly lower as I use 5w-30.

I remember many years ago my Grandmother used to buy 'spot the differance' books, we spent many a happy hour going through them.