High oil pressure and creamyness.....trouble? ** pics**

[MR2boy]

Over the last week the oil pressure has been quite high eg. 70psi at 2k and ive noticed that when vvt kicks in it doesnt seem to give the same kick it used to

also i checked the oil today and it was really creamy (see pics)

silvertop 4age

anyone have any suggestions as to what this may be?

[deaf_rattle]

id hate to say it, but looks like you have a blown head gasket

since silver top 4ages are cheap as chips anyway i wouldnt bother replacing the head gasket, i would just buy a replacement engine.

[Alex B]

whats the logic in that? I think your better to stick with ht emotor you currently have. At leat that way you will know it has new head gasket. Who knows what conditin a secondhand 4AGE is in?

[ChaosAD]

Problem is, when you replace the H/G youll probably find the bores and rings are $&#$% too.

[Alex B]

wel yea thats true. What im trying to say is if you recon it atleast you know what you got. If ya know what i mean....

[RedMist]

Thats unfortunately a tonne of water in your oil.
My first guess would also be a headgasket.
Warwick (Revhead) should be able to give you a good price on a head gasket or complete headset.
With the head removed get it checked for density and cracks as this may be the cause of your problem rather than the gasket itself.

You'll also want to flush your water system to ensure any oil in the water doesnt decrease your cooling efficiency. Replace your oil filter and the oil before you start the engine and give it a good long run to get rid of any remaining water once the headgasket is replaced.

[deaf_rattle]

whats the logic in that? I think your better to stick with ht emotor you currently have. At leat that way you will know it has new head gasket. Who knows what conditin a secondhand 4AGE is in?

well yeah if it were a performance engine i would agree with you.
But you would probably pay $200 for a gasket set, $40-$70 to have the head planed

you have to clean all the bits up (free if you do it yourself)

new head bolts ($120ish)

might as well do the cambelt while you are at it.

etc etc

but you could probably pick up a decent engine for $400-$600ish

then its a bolt in job

[ee904age]

i wouldnt bother replacing the head gasket, i would just buy a replacement engine.

This, coming from he who owns a 7M!!! There would be none left if everyone who blew a 7M gasket did that!!!

Im strongly against replacing an engine with one of unknown condition for reasons like yours, I personally would fit a new gasket, clean up the head and oil galleries and keep on truckin.

[Alex B]

meh theres stil the risk the new one wil stuff out in no time. But yea eatch to his own.

[Lloyd]

If you're doing the labour yourself then you might as well go for a rebuild as you know you have a new engine. If you're paying someone then just drop a second hand engine in, cheaper and easier.

[JasonZE]

If it was a good engine before with no rattles and smoke etc take the head off and get to an engine reconditioner for pressure/hardness test.
I did an engine last week with water in oil and it was just a water gallery plug in the head leaking new bung surface grind and new gasket etc and all done.

You can do a head gasket at home but an engine replacement requires better tools and hoist/crane etc etc and if you pay under $800 for an engine you get what you pay for and most likely no warranty!
So get the head off as you have nothing to loose and everything to gain.

[deaf_rattle]

i wouldnt bother replacing the head gasket, i would just buy a replacement engine.

This, coming from he who owns a 7M!!! There would be none left if everyone who blew a 7M gasket did that!!!

Im strongly against replacing an engine with one of unknown condition for reasons like yours, I personally would fit a new gasket, clean up the head and oil galleries and keep on truckin.

yes, but as i said, the 7mgte is a performance engine, and you cant pic up a complete engine for the cost of a silvertop 4age

please compare apples with apples.

head set for the 7mgte was about $200, arps were $140ish
labour was done by myself and david linton.

and the head plane was $40

that is less than half the cost of a complete engine.

And we all know 7mgtes are prone to blowing head gaskets, where as silver top 4ages arent.

thanks

[MR2boy]

ok don't want to get into a debate, I know the merits of replacing the engine vs freshning up the engine ive got at the moment

I just wanted to know if you guys thought that it may have been the headgasket or something else due to the increased oil pressure

I know what it takes to change the engine and hg and think they would be roughly the same difficulty, but due to me not being paid for another 3 weeks I can't afford to get another engine so might rip the head off today and have a look and i'll get back to you guys with results

[nzhogrider]

Hey, once you got yor head off, get it crack tested.
The high oil pressure is from the blown head gasket or cracked head, leaking cylinder pressure into your oil system.
I have a mint silvertop head for sale, look for my post, "blacktop engine parts for sale" and also a complete 20v head set, brand new, never opened. The old addage aplies here I think, don't go about half cocked, or do it once and do it right.

[Adamal]

I'm with the crack testing idea. I've had this happen before in my old car. Prayed that it was the head gasket, replaced it and still happened. Turned out to be a crack in one of the cradles the cam shaft sits in.

Ain't nothin like a nice cup of radiator-made coffee in the mornin'.

[yobbosayo]

wow, I vote for this thread as the most coherent and on-topic discussion ever.
this thread rules

[Lanius]

Silvertop for sale in Auckland if you're interested -

viewtopic.php?t=31300

[dohca]

congratulations you have a blown head gasket

unless someones put water in your oil by mistake...

id go for a 2nd hand engine, unless your engine is low kms no knocks etc.

while your at it you may as well do bearings, rings and recon etc etc

[MR2boy]

Im not going for the easy way out, I took out the engine and took he head off






I couldn't see any problems with the gasket that would cause water to get into the oil, although im no expert, and I couldn't see any visable damage to the head so im going to get it tested just incase

[matt dunn]

Im not going for the easy way out, I took out the engine and took he head off



I couldn't see any problems with the gasket that would cause water to get into the oil, although im no expert, and I couldn't see any visable damage to the head so im going to get it tested just incase

I had a head gasket problem with my 20V. It leaked water from the cooling system into the cylinder to the point where it hydraulic'd on the starter.

Pulled it all to bits and there was nothing wrong with the gasket and no signs of the fault. After lots of time and dollars worth of testing it was put down to the head not being 100% flat. A small skim off the head and a new gasket and head studs, and it it all running sweet.

Maybe you have a similar problem??

Matt