Toyota RAV4 mod 2000 noise after the engine rebuild

[neziuhnaki]

My RAV4 engine was rebuilt by Toyota and handed back to me as a good as new.
After driving it I heard an unusual engine noise and reported it immediately to Toyota.

I took my RAV4 to Toyota’s workshop to have it checked by the engineer who had done the rebuild of the damaged engine from oil starvation.
The rebuild included re-boring, crankshaft regrinding and damaged parts replacement.

The engineer could not immediately tell the workshop manager what the noise was although it had been established that it was in the engine after the fan belt was removed to isolate the engine.
What the engineer did say was that he had to build up and machine the shims of the camshaft to set the float, this raised suspicion to me as this is supposed to be a Toyota guarantee engine rebuild?

The engineer requested to have the RAV taken to his workshop to establish where the noise was coming from.

Yesterday I took the RAV to the engineers work shop where a stethoscope was used to listen for the noise.

The engineer with his engine assembler established that the noise was coming from the camshaft on the side of the shims and the “vernos auto advance unite.

The engineer said that he had not replaced the vernos, that it was an auto camshaft advancing unite that had a rotor with veins like an air grinder, that operated with oil pressure, he also said that this would be the first piece of equipment that would get damaged being furthest from the oil pump.

Because of the oil starvation which caused the engine breakdown, would it be advisable to replace the camshaft shims and “vernos” advance system?

Could someone help me with the correct camshaft auto advance unite spelling, and if possible a picture of the camshaft assembly and what are the views out there.

 

[catman37]

Can you tell us the year and exact model of your Rav4?

 

[neziuhnaki]

Can you tell us the year and exact model of your Rav4?

RAV4 3 door petrol
Year 2000
Model ACA20R - AZMNK
Engine 1AZ - FE 1998


engine number 1az0126977
vin jteyh20v600010417

hope this is OK Thank You

 

[FiestaST]

RAV4 3 door petrol
Year 2000
Model ACA20R - AZMNK
Engine 1AZ - FE 1998


engine number 1az0126977
vin jteyh20v600010417

hope this is OK Thank You

Hmm...this is good; can you provide the individual service dates as well?

 

[neziuhnaki]

Date of first register 2001 – 01 - ??
Spar Toyota Stellenbosch
To a Wahoo Trust
Pre Delivery inspection Sheet 2000 – 12 – 00
10 000km Service 2001 – 10 – 11 Kms 10690
20 000km Service 2002 – 06 – 02 Kms 19895
40 000km Service 2003 – 07 – 03 Kms 38991
60 000km Service 2004 – 07 – 29 Kms 57629
75 000km Service 2007 – 01 – 10 Kms 78234
90 000km Service 2009 – 08 – 04 Kms 88832 I took ownership
120 000km Service 2010 – 06 – 02 Kms 114443
135 000km Service 2010 – 12 – 01 Kms 128987
150 000km Service 2011 – 08 – 11 Kms 151236
165 000km Service 2012 – 04 – 12 Kms 159950
180 000km Service 2013 – 09 – 04 Kms 177427
200 000km Service 2014 – 06 – 18 Kms 207147 service in contention
(Told Toyota of the red light)
220 000km Service 2015 – 06 – 01 Kms 217768 Engine break down

Thank You

 

[chickenbeef]

Y U DO DIS to the guy

Hmm...this is good; can you provide the individual service dates as well?

Date of first register 2001 – 01 - ??
Spar Toyota Stellenbosch
To a Wahoo Trust
Pre Delivery inspection Sheet 2000 – 12 – 00
10 000km Service 2001 – 10 – 11 Kms 10690
20 000km Service 2002 – 06 – 02 Kms 19895
40 000km Service 2003 – 07 – 03 Kms 38991
60 000km Service 2004 – 07 – 29 Kms 57629
75 000km Service 2007 – 01 – 10 Kms 78234
90 000km Service 2009 – 08 – 04 Kms 88832 I took ownership
120 000km Service 2010 – 06 – 02 Kms 114443
135 000km Service 2010 – 12 – 01 Kms 128987
150 000km Service 2011 – 08 – 11 Kms 151236
165 000km Service 2012 – 04 – 12 Kms 159950
180 000km Service 2013 – 09 – 04 Kms 177427
200 000km Service 2014 – 06 – 18 Kms 207147 service in contention
(Told Toyota of the red light)
220 000km Service 2015 – 06 – 01 Kms 217768 Engine break down

Thank You

 

[Drifter]

Have to ask, but why didnt you check the oil levels?

 

[neziuhnaki]

It wasn’t the oil level; it was sludge in the sump blocking the oil pump pickup

 

[Rickster]

It wasn’t the oil level; it was sludge in the sump blocking the oil pump pickup

Then the oil pressure would have dropped and the oil light would flash....no?

200 000km Service 2014 – 06 – 18 Kms 207147 service in contention
(Told Toyota of the red light)

Hmmm....oil light?

Also how can oil turn to sludge in 20 000KM? Sh*t brand of oil?

 

[Colin62]

Car wasn't used much and was only serviced on mileage instead of annually IIRC.

Possibly stood for a long time without being used and was then used without being serviced would be my guess.

 

[Stokstert]

Also how can oil turn to sludge in 20 000KM? Sh*t brand of oil?

Sludge build-up over time in the sump until pick up is clogged.

Castrol GTX by any chance?

 

[neziuhnaki]

Sludge build-up over time in the sump until pick up is clogged.

Castrol GTX by any chance?

This Posting, “Toyota RAV4 mod 2000 noise after the engine rebuild” is about Toyota overhauling the
engine and I found that there is a noise in the engine which the Toyota engineer suspects to be the camshaft shims or the camshaft auto advance system not functioning.

 

[neziuhnaki]

Then the oil pressure would have dropped and the oil light would flash....no?




Hmmm....oil light?

Also how can oil turn to sludge in 20 000KM? Sh*t brand of oil?

I experienced the oil light flickering on and off just before I booked the RAV in for the service June 2014, this I raised as a concern when booking the RAV in for the service; then the kilos was at 207147.

Hmmm....oil light?

Also how can oil turn to sludge in 20 000KM? Sh*t brand of oil?

I reported to the Toyota booking in man, the workshop foreman and mechanic, when I booked in the RAV for the service June 2014 that the oil light was coming on.
Draining the old oil allowed the sludge to drop to the bottom of the sump; the sump was not removed to clean out the sludge, which is what should have happened, eventually the sludge worked its way back to the oil suction pickup by force of the oil pump suction and blocked the oil to the engine.
Collin62’s entry below is where the Toyota workshop foreman and mechanic did not act on my concern.

Colin62

Grandmaster
Join Date
Apr 2008
Location
Mistbelt, KZN
Posts
4,156

Unless you know for a fact when a car was last serviced, it's always a good idea to have it done when you buy secondhand. It also means that you get to find out from the mechanic if there are any problems that you might have missed when checking the car before buying.