The Time Has Come...
Thread Starter
Nordschleife Master
Joined: Dec 2016
Posts: 8,050
Likes: 819
From: Kauai
The Time Has Come...
To change my water pump and thermostat!
No drips but I have developed some coolant crust on the outer edge of the pully and pump bolts...So much for a relaxing day off on Tuesday
Quick question, can I just drain the coolant from the motor or do I have to flush out the entire system? I have all new (two months old) coolant in there now.
No drips but I have developed some coolant crust on the outer edge of the pully and pump bolts...So much for a relaxing day off on Tuesday
Quick question, can I just drain the coolant from the motor or do I have to flush out the entire system? I have all new (two months old) coolant in there now.
Last edited by 808Bill; Oct 13, 2019 at 12:39 PM.
Instructor
Joined: Jun 2017
Posts: 227
Likes: 60
From: Western North Carolina
To change coolant or not...
Hi Bill,
Your coolant is new but.. you say it’s crusty?
I would try to capture and filter the coolant. This is a great way to quickly get all the coolant out.
https://rennlist.com/forums/996-foru...pump-tips.html
Thanks to a post by Asahi.
Your coolant is new but.. you say it’s crusty?
I would try to capture and filter the coolant. This is a great way to quickly get all the coolant out.
https://rennlist.com/forums/996-foru...pump-tips.html
Thanks to a post by Asahi.
Thread Starter
Nordschleife Master
Joined: Dec 2016
Posts: 8,050
Likes: 819
From: Kauai
Hi Bill,
Your coolant is new but.. you say it’s crusty?
I would try to capture and filter the coolant. This is a great way to quickly get all the coolant out.
https://rennlist.com/forums/996-foru...pump-tips.html
Thanks to a post by Asahi.
Your coolant is new but.. you say it’s crusty?
I would try to capture and filter the coolant. This is a great way to quickly get all the coolant out.
https://rennlist.com/forums/996-foru...pump-tips.html
Thanks to a post by Asahi.
Also, I don't have 2-3 weeks to wait for a UVIEW to ship out to Hawaii.
Pro
Joined: Dec 2003
Posts: 516
Likes: 53
From: NYC - Now near Raleigh, NC
To change my water pump and thermostat!
No drips but I have developed some coolant crust on the outer edge of the pully and pump bolts...So much for a relaxing day off on Tuesday
Quick question, can I just drain the coolant from the motor or do I have to flush out the entire system? I have all new (two months old) coolant in there now.
No drips but I have developed some coolant crust on the outer edge of the pully and pump bolts...So much for a relaxing day off on Tuesday
Quick question, can I just drain the coolant from the motor or do I have to flush out the entire system? I have all new (two months old) coolant in there now.
RL Community Team
Rennlist Member
Rennlist Member
Joined: Apr 2010
Posts: 6,284
Likes: 1,510
From: Ormond Beach, FL
I used the coolant drain plug to drain the engine coolant. Changed water pump and thermostat. Probably the hardest part was getting the big hose off the thermostat. Keep track of your water pump bolts, they are different lengths. I set the new water pump beside me and as I took out the water pump bolts I put them in the corresponding bolt hole on the new water pump. I refilled the coolant expansion tank, waited awhile to see if it would burp, then fired it up. Added coolant once it started to get warm and then put on the cap. Manually lifted the wire bail and took a drive. I left the wire bail up for several days for several drive cycles cool to hot to cool. Only had to add a minor bit of coolant and that was it.
There is a hard line (black pipe) that runs next to the thermostat cover. Look forward along the engine and there is a small 8mm bolt that holds the line in place. Removing that bolt so the hard line is movable is a trick to make removing/installing the thermostat way easier.
There is a hard line (black pipe) that runs next to the thermostat cover. Look forward along the engine and there is a small 8mm bolt that holds the line in place. Removing that bolt so the hard line is movable is a trick to make removing/installing the thermostat way easier.
Thread Starter
Nordschleife Master
Joined: Dec 2016
Posts: 8,050
Likes: 819
From: Kauai
Trending Topics
Instructor
Joined: Jun 2017
Posts: 227
Likes: 60
From: Western North Carolina
Idler pulleys
Be sure to check the idler pulleys for play and smoothness. I replaced two on my 996 while I had the engine out. Found dayco pulleys on eBay for about $33.00 @.
Look at this on eBay
Dayco Upper Drive Belt Idler Pulley for 1999-2008 Porsche 911 3.6L 3.4L 3.8L wy
Belt as well.
Look at this on eBay
Dayco Upper Drive Belt Idler Pulley for 1999-2008 Porsche 911 3.6L 3.4L 3.8L wy
Belt as well.
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Thread Starter
Nordschleife Master
Joined: Dec 2016
Posts: 8,050
Likes: 819
From: Kauai
Be sure to check the idler pulleys for play and smoothness. I replaced two on my 996 while I had the engine out. Found dayco pulleys on eBay for about $33.00 @.
Look at this on eBay
Dayco Upper Drive Belt Idler Pulley for 1999-2008 Porsche 911 3.6L 3.4L 3.8L wy
Belt as well.
Look at this on eBay
Dayco Upper Drive Belt Idler Pulley for 1999-2008 Porsche 911 3.6L 3.4L 3.8L wy
Belt as well.
Race Car
Joined: Nov 2014
Posts: 3,890
Likes: 162
From: Melbourne, Australia
I too just got a UView but am yet to use it,I did a bunch of little jobs whilst I have the coolant drained - cap at the back of the engine + the T coolant piece that goes to the AOS.
I found a URO parts metal T piece that was half the price of the ratchet and spiegal? One and is identical to the original in design just all metal - awesome.
I found a URO parts metal T piece that was half the price of the ratchet and spiegal? One and is identical to the original in design just all metal - awesome.
Just a car guy
Rennlist Member
Rennlist Member
Joined: Jan 2002
Posts: 9,927
Likes: 837
From: South Lyon, Michigan, Ewe Ess Eh
I used the coolant drain plug to drain the engine coolant. Changed water pump and thermostat. Probably the hardest part was getting the big hose off the thermostat. Keep track of your water pump bolts, they are different lengths. I set the new water pump beside me and as I took out the water pump bolts I put them in the corresponding bolt hole on the new water pump. I refilled the coolant expansion tank, waited awhile to see if it would burp, then fired it up. Added coolant once it started to get warm and then put on the cap. Manually lifted the wire bail and took a drive. I left the wire bail up for several days for several drive cycles cool to hot to cool. Only had to add a minor bit of coolant and that was it.
There is a hard line (black pipe) that runs next to the thermostat cover. Look forward along the engine and there is a small 8mm bolt that holds the line in place. Removing that bolt so the hard line is movable is a trick to make removing/installing the thermostat way easier.
There is a hard line (black pipe) that runs next to the thermostat cover. Look forward along the engine and there is a small 8mm bolt that holds the line in place. Removing that bolt so the hard line is movable is a trick to make removing/installing the thermostat way easier.
Pro
Joined: May 2018
Posts: 626
Likes: 126
From: Pontevedra
The EGR is a gas recirculation valve, frequently used in turbo diesel for recirculating part of the exhaust gases to the intake to reduce the temperature in the chamber and with that, the polution
They are a pain on the but actually...
Pro
Joined: Dec 2003
Posts: 516
Likes: 53
From: NYC - Now near Raleigh, NC
