Back Pressure advice Please

border · May 28, 2015

Hello. Sorry not Land Rover but need some advice.
My sons 1996 Toyota Hilux 2.4D has some pressure coming from the oil filler cap when its removed, It also spits spots of oil out, its been like this for a few months now but does start and run very well.
Is this a sign the engines about to go? or can it be sorted??
Had this truck for about 4 years now and never had any problems till now.
Any help or advice will be appreciated. Thanks

THEengineer · May 28, 2015

sounds like head gaskets going,or lumps very worn,would consider sorting the head gasket first

Kwakerman · May 28, 2015

Check all the engine breather system is clean and free flowing.

Dippypud · May 28, 2015

Crankcase compression ?...

Check that the crankcase vent tube that routes into the intake is clear...

Have a read of this :
Are My Rings Gone ? - Technical Questions - Hilux Pickup Owners Club & Online Community

border · May 28, 2015

Thanks,hope its not the head gasket going.
What should I be looking at with the breather system? what pipes ect??

border · May 28, 2015

Dippypud said:
Crankcase compression ?...

Check that the crankcase vent tube that routes into the intake is clear...

Have a read of this :
Are My Rings Gone ? - Technical Questions - Hilux Pickup Owners Club & Online Community

No Smoke, and engine does seem to run very well. will check all hoses ect tomorrow.

Murtle · May 29, 2015

Just clean the engine breather system, job done.

border · May 29, 2015

Murtle said:
Just clean the engine breather system, job done.

Which parts do I clean mate.

trax · May 29, 2015

border said:
Which parts do I clean mate.

they usually vent into the air intake somewhere. go find the hose and follow it back. probably some plastic thing. rinse it out with petrol and blow down the hose to make sure it's clear.

Datatek · May 30, 2015

trax said:
they usually vent into the air intake somewhere. go find the hose and follow it back. probably some plastic thing. rinse it out with petrol and blow down the hose to make sure it's clear.

+1 to above, there will be a little oil trap/filter somewhere unless it's been removed.

border · May 30, 2015

Took the top of inlet off, it was gunked up with sludge/oil, give it a good clean out, put all back together so it was all clear through the breather pipe going in, and still the same. Is there anything else I can try???
Thanks for help so far.

trax · May 31, 2015

border said:
Took the top of inlet off, it was gunked up with sludge/oil, give it a good clean out, put all back together so it was all clear through the breather pipe going in, and still the same. Is there anything else I can try???
Thanks for help so far.

had a google, looks like the crankcase breather is just a tube from the rocker to the air intake.

how old is the engine? also it will have a bit of pressure, but not really heavy.

got a compression tester? could test for worn rings/etc

border · May 31, 2015

trax said:
had a google, looks like the crankcase breather is just a tube from the rocker to the air intake.

how old is the engine? also it will have a bit of pressure, but not really heavy.

got a compression tester? could test for worn rings/etc

Its a 1996 156000 mles, but like I said it runs and drives perfect, since I bought 4 years ago. Going to get it tidied up to sell it on, so would really like this sorted. Gonna change all filters and oil, might make a difference.

Datatek · May 31, 2015

border said:
Its a 1996 156000 mles, but like I said it runs and drives perfect, since I bought 4 years ago. Going to get it tidied up to sell it on, so would really like this sorted. Gonna change all filters and oil, might make a difference.

Check inside the rocker cover, the oil separator/PCV valve for the breather may be in there, if it is, they do block.

Murtle · May 31, 2015

Before you take it all apart though, just try blowing down the pipe to see if it's free flowing or not.

Datatek · May 31, 2015

Murtle said:
Before you take it all apart though, just try blowing down the pipe to see if it's free flowing or not.

But do not blow into the rocker cover, if it has a PCV valve it may not like it.

Murtle · May 31, 2015

Datatek said:
But do not blow into the rocker cover, if it has a PCV valve it may not like it.

If it's a turbo diesel there's a one way valve to stop that anyway, I was referring to just the pipe to ensure it's not blocked.

border · May 31, 2015

Murtle said:
If it's a turbo diesel there's a one way valve to stop that anyway, I was referring to just the pipe to ensure it's not blocked.

Its not a turbo, just a 2.4diesel

Datatek · Jun 1, 2015

border said:
Its not a turbo, just a 2.4diesel

There may still be an oil trap/PCV valve in the rocker cover.
Try Google, you should find service details for you vehicle.

Back Pressure advice Please

border

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THEengineer

whatever

Kwakerman

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Dippypud

Never Knowingly Understood

border

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border

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Murtle

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border

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trax

.

Datatek

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border

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trax

.

border

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Datatek

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Murtle

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Datatek

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Murtle

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border

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Datatek

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