Sludge fix

[Benboy]

A job well done. A real credit to you and your persistence. :clap:

 

[markovr]

Thanks for compliment...just did about 2200 kms in 4 days in it on a Bathurst trip and it ran faultless at speeds at times upwards from 140 and oil pressure ran around 40 to 50 lbs (i now have a permanent gauge on the dash) at cruising speeds...so I hope to never see inside the sump/engine again with attention to service intervals...... 7000-10000 or 6 months

 

[pebbs]

Mate I honestly didnt think you would ever get that mess clean, unbelievable job, congratulations, You have really taught people how to be persistent, glad it going well.

 

[gungazza]

What causes this problem

 

[greenacc]

Not servicing the engine, and quite probably cheap oil used and running it for a very long time.

 

[VS_Pete]

Thanks for compliment...just did about 2200 kms in 4 days in it on a Bathurst trip and it ran faultless at speeds at times upwards from 140 and oil pressure ran around 40 to 50 lbs at cruising speeds...so I hope to never see inside the sump again with attention to service intervals.

Well done mate.

 

[markovr]

What causes this problem

For me it was going by the service intervals gm had set and because there is no way of seeing inside the engine without pulling it apart nothing to gauge my actions by...engine showed no signs of anything until the pickup screen clogged up and the oil warning came up.

Not servicing the engine, and quite probably cheap oil used and running it for a very long time.

That could be true but I always used the right oil specified and at the start the gm oil...and service intervals of 15000 kms...Previously I saw plenty of horror stories of gummed up alloytecs and just thought the ones I saw had never been or been poorly serviced but I was wrong ..it can happen to any alloytec is serviced to 15000 intervals especially on a engine that does a lot of short trips in this interval and the oil only gets to a normal operating temperature for a short period of time ...almost like a small coating that is put on and on and happens repeatedly over a long time until it finaly blocks something up

 

[oska]

What causes this problem

that usually happens when people "top up" the engine oil without changing it

 

[greenacc]

Tell you what threads like this make me nervous! I'm 80% confident the inside of my engine is squeaky clean. The other 20 % wants to pull the rocker covers off just to check it's not caked in sludge and starving the expensive bits from oil.
One things for sure my car has never been used for regular short trips so not reaching operating temp was never an issue. The original owner did 1000ks a week ...
Fingers crossed!

 

[pebbs]

Strangely enough I don't recall ever seeing sludge like that in the engines of cars in the 60s.
Back then it was only mineral oils, however the oil changes were much more frequent than today and the oil filter huge in comparison to the VE of today.