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LC90 D4D Blown head gasket or cracked head

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benterrier
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Joined: 29 Dec 2009
Posts: 171
Location: hereford

PostPosted: Tue Mar 12, 2013 14:33    Post subject: Reply with quote

HairyWookie wrote:
Interesting read; really glad you are all sorted.

They truly are tough old sods; provided issues are caught early by monotoring everything mechanical on them, coolant level, coolant colour, warm up times, oil level, oil colour etc, I think you have to go a long way to causing lasting damage.

One query though; what is Jizer??
Need to do a coolant change on mine this year; looked at Forte flush.

Thank you,


Jizer......a water rinsable degreaser........
Marvellous thing Google!

Regards
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PostPosted: Tue Mar 12, 2013 14:33    Post subject: Google Ads keep this community free to join!


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HairyWookie
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Joined: 20 Jul 2012
Posts: 405
Location: Heysham, Lancs

PostPosted: Tue Mar 12, 2013 15:12    Post subject: Reply with quote

Yeah, I saw that. Cheap at screw fix.
Wasn't sure if that was the same stuff. Mine is manual gearbox, don't think any benefit for me.

Coolant & thermostat changed 22 months ago; but not flushed.

Any flush recommendations?
Seen loads of different types at varying prices.

Is it worth doing a flush?
Staring in radiator, it looks quite clean water. Hydrometer at only -15 deg C rating though. Strange, quite diluted, but not by me, I added 1/4 litre water when heat exchanger fitted, this won't have diluted it so much surely?
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Regards, Chris.

1997 KZJ95 3.0TD GX Manual (Jess)
Weekend Warrior with 18 years of mechanical experience; still learning...
Occasional use on SVO...
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mks
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Joined: 20 Aug 2007
Posts: 151
Location: kent

PostPosted: Tue Mar 12, 2013 23:52    Post subject: Reply with quote

Jizer is a degreaser. I only used it to remove the oil sludge from the system. Not sure I would bother if just changing the coolant. I was concerned that sludge would have blocked the thin rear heater pipes. I solved this by running the system up to temp under pressure then disconnecting the rear heater pipe at the rear heater using the pressure to force the sludge out, worked a treat.

Martin
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Martin
2002 LWB LC Colorado VX D4D
2014 LC 200 4.5 V8 Diesel
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