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anatole
Joined: 05 Oct 2019 Posts: 3 Location: Rivervale, Australia
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Posted: Sat Oct 05, 2019 4:05 Post subject: thermostat |
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1994 Space Gear pfw8 series 2.8 TD 4m40 engine, was told there are 2 thermostats, one waterpump, 2nd on inlet manifold, when i ring parts places none list a second thermostat, any info??? |
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Posted: Sat Oct 05, 2019 4:05 Post subject: Google Ads keep this community free to join! |
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Lewis Site Admin
Joined: 25 May 2006 Posts: 16291 Location: Huddersfield
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Posted: Sat Oct 05, 2019 9:04 Post subject: |
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There is only the one. That is inside the elbow at the top end of the hose going from the engine to the bottom of the radiator.
The water pump is mounted below, and more centrally, where you can see the two belts on the pulley wheel:-
HTH
_________________
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Do not blindly go where the path may lead you. Go where there is no path and leave a trail that others may follow!
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anatole
Joined: 05 Oct 2019 Posts: 3 Location: Rivervale, Australia
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Posted: Sat Oct 05, 2019 10:35 Post subject: |
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thanks for that, cheers |
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Deker
Joined: 08 Mar 2008 Posts: 3833 Location: Borehamwood
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Posted: Thu Oct 10, 2019 18:48 Post subject: |
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There are two Thermistors (temperature sensors) on the Cylinder head,
one is for the Temperature reading on the dash board, the other for Glow Plug & Over Drive function.
HTH
Mr D |
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Deker
Joined: 08 Mar 2008 Posts: 3833 Location: Borehamwood
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Posted: Thu Oct 10, 2019 19:02 Post subject: |
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The poster said "was told there are 2 thermostats, one waterpump, 2nd on inlet manifold,"
Maybe some misunderstanding on component names & locations
That is how I see/saw it.
Mr D |
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anatole
Joined: 05 Oct 2019 Posts: 3 Location: Rivervale, Australia
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Posted: Thu Oct 10, 2019 23:18 Post subject: overheating - posts merged for continuity |
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94 Delica 2.8 diesel PFW8 - Recent overheating issue, prior to this replaced rear main engine seal, overheating started post surgery. car sat for a couple of months awaiting the rear main, cooling system was full of shitty muddy water for some time from previous owner, so we thought the water pump and thermostat needed replacing, also header tank had been leaking so got a new bottle too. anyway after flushing system still over heating with temp quite quickly going to 3/4 or the top of guage. I'm praying head gasket not gone, after flushing was no sign of bubbles continuing to come to surface in header tank, any suggestions on overheating issues would be very good for my mental health! blockage somewhere?? have left cooling system flush in but needs to stay in for 200kms and it won't be going too far atm, even getting hot at idle |
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andyman
Joined: 08 Dec 2012 Posts: 5601 Location: Penrith
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Posted: Fri Oct 11, 2019 20:35 Post subject: |
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If you have changed the water pump, thermostat and header tank, and thoroughly flushed the system, and bled it right through, sounds like there is only the radiator left to change. If the you flushed a lot of rusty mud out of the system, there is a good chance that the radiator still has a lot of rusty flakes blocking it. Did you use a flushing agent which loosens, dissolves and lubricates such sediment, or just water? Did you check for cool spots on the radiator? Does the new coolant not just water) still look clean? _________________ Andy C L300 Super Exceed - over 100 smiles per gallon! |
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Soulman Lifetime member
Joined: 01 Sep 2009 Posts: 638 Location: Bedfont, Middlesex
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Posted: Tue Oct 22, 2019 11:12 Post subject: |
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A simple check for head gasket or cracked head is to place the expansion tank overflow hose into a half filled glass of water whilst the engine is running, if it bubbles then you have an issue. |
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Lewis Site Admin
Joined: 25 May 2006 Posts: 16291 Location: Huddersfield
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Posted: Tue Oct 22, 2019 14:11 Post subject: |
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Just a minor thought, but did you fit the replacement thermostat in the right way up ?
I.E. With the little hole, with the jiggle pin, at the top.
That helps allow air caught up in the system get pushed through, as if there is an air pocket inside the elbow there will be no water getting to the thermostat, to heat it up, so it won't open.
HTH _________________
Copyright is retained for all my photos. Please don't copy them without asking permission
Do not blindly go where the path may lead you. Go where there is no path and leave a trail that others may follow!
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boxerbloke Lifetime member
Joined: 18 Jun 2011 Posts: 2241 Location: Bracknell
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Posted: Sat Nov 30, 2019 14:10 Post subject: |
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I've just ordered a new thermostat and it didn't come with a gasket , searched for one and not had much luck , is there one ? _________________ Always remember when you read my replies I know less than Bazza. |
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Lewis Site Admin
Joined: 25 May 2006 Posts: 16291 Location: Huddersfield
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Posted: Sat Nov 30, 2019 14:34 Post subject: |
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It should have a rubber ring around the outside edge, as per the photo above.
That acts as the gasket when placed in the housing. Without that it's useless. _________________
Copyright is retained for all my photos. Please don't copy them without asking permission
Do not blindly go where the path may lead you. Go where there is no path and leave a trail that others may follow!
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boxerbloke Lifetime member
Joined: 18 Jun 2011 Posts: 2241 Location: Bracknell
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Posted: Wed Dec 04, 2019 22:23 Post subject: |
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thanks Lewis ....and is OAT coolant okay to use ? _________________ Always remember when you read my replies I know less than Bazza. |
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Lewis Site Admin
Joined: 25 May 2006 Posts: 16291 Location: Huddersfield
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Posted: Thu Dec 05, 2019 0:20 Post subject: |
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See this post: www.MDOCUK.co.uk/forums/viewtopic.php?t=49207
Personally I get this one:- Comma Coldmaster Concentrate and Dilute it 50/50.
HTH _________________
Copyright is retained for all my photos. Please don't copy them without asking permission
Do not blindly go where the path may lead you. Go where there is no path and leave a trail that others may follow!
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boxerbloke Lifetime member
Joined: 18 Jun 2011 Posts: 2241 Location: Bracknell
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Posted: Thu Dec 05, 2019 7:36 Post subject: |
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Thanks again Lewis ...that's the one i will go for too now _________________ Always remember when you read my replies I know less than Bazza. |
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