KV6 HG - what tests to run - Page 2

zefrench · 21st August 2016, 18:56

I am trying to do a leakdown test. I first removed the gasoline pump relay and then removed the side cover to get access at the crankshaft pulley. I then removed the spark plug of cylinder 3. I found TDC using a piece of a metal cloth hanger and I found the compression stroke using a kids small balloon on the end of my leakdown tester hose.

The issue I have is the moment I put more then 30-35 psi the crankshaft pulley moves. I tried putting a breaker bar on the 22 mm bolt but my concern is if I put too much psi of air it would remove the crankshaft bolt pulley.

Are my fears real ? Or should I brace that bolt better ?

Friendly mecanics charge $80 an hour instead of the regular $120 elsewhere. I can afford a lot of tolls and times for this. Plus since its says freelander on the SUV , it means anything around the coolant is a headgasket job in their mind and they will not even look at it.

kaiser · 21st August 2016, 20:05

Why not leave car in gear and apply the brake?
If manual.

kaiser · 21st August 2016, 20:08

Have you applied pressure to the cooling system?

murphyv310 · 21st August 2016, 20:33

Hi.
From my experience try this.
Like the chaps have said go for a drive, don't boot it drive sedately but go for 20 miles or so. Go home and touch nothing, leave overnight and remove the expansion cap and listen........... there should be no hiss when you remove it.
Second thing to try is to start the engine from cold with the cap off, let it idle for 10 seconds then rev it to the red line, if coolant is ejected then buy a head gasket set, a leaking gasket will pressurise the system with this treatment.

zefrench · 21st August 2016, 22:57

My freelander is automatic. I found out that I was doing a leak down test not quite at TDC thus why the crankshaft was moving.

The leakdown tester with 90ish psi of air applied did not show any bubbles in the coolant expansion tank.

See pictures:

Compressor air gauge

Leakdown tester air gauge

Another test I ran is I tested the cooling system at 22 psi, no leaks.

zefrench · 21st August 2016, 22:58

Quote:

Originally Posted by murphyv310

Hi.
From my experience try this.
Like the chaps have said go for a drive, don't boot it drive sedately but go for 20 miles or so. Go home and touch nothing, leave overnight and remove the expansion cap and listen........... there should be no hiss when you remove it.
Second thing to try is to start the engine from cold with the cap off, let it idle for 10 seconds then rev it to the red line, if coolant is ejected then buy a head gasket set, a leaking gasket will pressurise the system with this treatment.

I will run this test next, from cold and report.

Dallas · 21st August 2016, 23:06

Could the problem be a blocked oil cooler?

Normally sits down right-side front of engine, water passes through it. The early cylinder coolers dont block, but the later square oblong coolers do, it has two pipes going into it.

zefrench · 22nd August 2016, 01:27

Quote:

Originally Posted by Dallas

Could the problem be a blocked oil cooler?

Normally sits down right-side front of engine, water passes through it. The early cylinder coolers dont block, but the later square oblong coolers do, it has two pipes going into it.

Hi Dallas. I am all for ideas! How do you see a blocked oil cooler increasing the coolant system pressure and contributing to the coolant loss ?

zefrench · 14th September 2016, 23:19

While is was draining the oil for doing my timing belts (no time to do the heads yet) there is coolant in it. There is no oil in the coolant piping system but coolant in the oil I just drained.

I am thinking this confirms that the head gasket is bad.

kaiser · 15th September 2016, 05:16

This proves only one thing, namely that you have oil in the water. It does not say where it comes from!
all your tests regarding the headgasket on the compression side seem to be fine, from what I can remember.
I don't know if you have an oil cooler in the Freelander? but in the Rover 75, that can allow the water and oil to cross.
It could well come from a head gasket, but then again, it might not.

I suggest you contact freelanderspecialists.com in the UK to give you specific advice on your car.
The e-mail address is sueATreelanderspecialist.come
You know what to do with the AT?

Oh, good luck, and keep us posted!

21st August 2016, 20:05	#12
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	Why not leave car in gear and apply the brake? If manual. __________________ Worth his V8 in gold

21st August 2016, 20:08	#13
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	Have you applied pressure to the cooling system? __________________ Worth his V8 in gold

21st August 2016, 20:33	#14
murphyv310 This is my second home Hyundai i10 998cc Join Date: Mar 2012 Location: Kilmarnock Posts: 6,602 Thanks: 2,088 Thanked 2,298 Times in 1,349 Posts	Hi. From my experience try this. Like the chaps have said go for a drive, don't boot it drive sedately but go for 20 miles or so. Go home and touch nothing, leave overnight and remove the expansion cap and listen........... there should be no hiss when you remove it. Second thing to try is to start the engine from cold with the cap off, let it idle for 10 seconds then rev it to the red line, if coolant is ejected then buy a head gasket set, a leaking gasket will pressurise the system with this treatment. __________________ Cheers from Trevor MM0KJJ

15th September 2016, 05:16	#20
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	This proves only one thing, namely that you have oil in the water. It does not say where it comes from! all your tests regarding the headgasket on the compression side seem to be fine, from what I can remember. I don't know if you have an oil cooler in the Freelander? but in the Rover 75, that can allow the water and oil to cross. It could well come from a head gasket, but then again, it might not. I suggest you contact freelanderspecialists.com in the UK to give you specific advice on your car. The e-mail address is sueATreelanderspecialist.come You know what to do with the AT? Oh, good luck, and keep us posted! __________________ Worth his V8 in gold

21st August 2016, 18:56	#11
zefrench Avid contributor Freelander V6 Join Date: Dec 2013 Location: Ontario, Canada Posts: 130 Thanks: 30 Thanked 24 Times in 22 Posts	I am trying to do a leakdown test. I first removed the gasoline pump relay and then removed the side cover to get access at the crankshaft pulley. I then removed the spark plug of cylinder 3. I found TDC using a piece of a metal cloth hanger and I found the compression stroke using a kids small balloon on the end of my leakdown tester hose. The issue I have is the moment I put more then 30-35 psi the crankshaft pulley moves. I tried putting a breaker bar on the 22 mm bolt but my concern is if I put too much psi of air it would remove the crankshaft bolt pulley. Are my fears real ? Or should I brace that bolt better ? Friendly mecanics charge $80 an hour instead of the regular $120 elsewhere. I can afford a lot of tolls and times for this. Plus since its says freelander on the SUV , it means anything around the coolant is a headgasket job in their mind and they will not even look at it.

21st August 2016, 22:57	#15
zefrench Avid contributor Freelander V6 Join Date: Dec 2013 Location: Ontario, Canada Posts: 130 Thanks: 30 Thanked 24 Times in 22 Posts	My freelander is automatic. I found out that I was doing a leak down test not quite at TDC thus why the crankshaft was moving. The leakdown tester with 90ish psi of air applied did not show any bubbles in the coolant expansion tank. See pictures: Compressor air gauge Leakdown tester air gauge Another test I ran is I tested the cooling system at 22 psi, no leaks.

21st August 2016, 23:06	#17
Dallas This is my second home 1979 Capri 1.6L, 1982 Capri 1.6L, 2016 Dacia Stepway Join Date: Jun 2009 Location: Dorset Posts: 8,595 Thanks: 3,496 Thanked 3,397 Times in 2,218 Posts	Could the problem be a blocked oil cooler? Normally sits down right-side front of engine, water passes through it. The early cylinder coolers dont block, but the later square oblong coolers do, it has two pipes going into it.

14th September 2016, 23:19	#19
zefrench Avid contributor Freelander V6 Join Date: Dec 2013 Location: Ontario, Canada Posts: 130 Thanks: 30 Thanked 24 Times in 22 Posts	While is was draining the oil for doing my timing belts (no time to do the heads yet) there is coolant in it. There is no oil in the coolant piping system but coolant in the oil I just drained. I am thinking this confirms that the head gasket is bad.