JapCarForum Car Manufacturers Lexus/Toyota IS200 / IS300 / SPORTCROSS / Altezza Possible coolant leak?

Possible coolant leak?

Possible coolant leak?

Andy-R.
Posting Freak
1,889
01-10-2016, 05:51 AM
#1
Noticed the other day there's what appears to be dried up coolant below and around the water pump, the cars not getting any hotter and the coolant levels not dropping so is there any possible reason for this or is my water pump leaking? gonna clean it off and see if it comes back or not but has anyone had anything like this happen?
Cheers.

40mm Lowering Springs, Re-sprayed Front, 6000K HID's, Re-furbed alloys, Bandit Induction Kit (cheers Chris), Raised boot spoiler with LED, Blue calipers with silver decals, De-badged rear, Chrome Oil Filler Cap (thanks to Chris again), White LED dash bulbs, Blue a/c control bulbs, Blue door markers and interior lights, Sony head unit, Chrome Lexus tax disc holder, TRD side skirts, Original Saloon Front Bumper re-fitted instead of Sportcross

[Image: Lf9Nl.jpg]
Andy-R.
01-10-2016, 05:51 AM #1

Noticed the other day there's what appears to be dried up coolant below and around the water pump, the cars not getting any hotter and the coolant levels not dropping so is there any possible reason for this or is my water pump leaking? gonna clean it off and see if it comes back or not but has anyone had anything like this happen?
Cheers.


40mm Lowering Springs, Re-sprayed Front, 6000K HID's, Re-furbed alloys, Bandit Induction Kit (cheers Chris), Raised boot spoiler with LED, Blue calipers with silver decals, De-badged rear, Chrome Oil Filler Cap (thanks to Chris again), White LED dash bulbs, Blue a/c control bulbs, Blue door markers and interior lights, Sony head unit, Chrome Lexus tax disc holder, TRD side skirts, Original Saloon Front Bumper re-fitted instead of Sportcross

[Image: Lf9Nl.jpg]

kam05
Senior Member
387
01-10-2016, 06:02 AM
#2
Check the by-pass pipe as well- the rubber 'o' rings can perish causing the coolant to leak from there as well.

[SIGPIC][/SIGPIC]

Mods:...WIM geometry setup & fine tune, K&N Air filter, Stainless steel A/C rings, Brodit phone kit, Stainless steel clock surround, B&M Shortshifter & LED Domelight, Maplight & Sun Visors, OEM Chrome exhaust tip, OEM rubber bootliner, Fan type windscreen washer jets, LS430 Side repeaters, OEM LE grille, OEM cargo net, Front OEM armrest
kam05
01-10-2016, 06:02 AM #2

Check the by-pass pipe as well- the rubber 'o' rings can perish causing the coolant to leak from there as well.


[SIGPIC][/SIGPIC]

Mods:...WIM geometry setup & fine tune, K&N Air filter, Stainless steel A/C rings, Brodit phone kit, Stainless steel clock surround, B&M Shortshifter & LED Domelight, Maplight & Sun Visors, OEM Chrome exhaust tip, OEM rubber bootliner, Fan type windscreen washer jets, LS430 Side repeaters, OEM LE grille, OEM cargo net, Front OEM armrest

steviewevie
Posting Freak
7,993
01-10-2016, 06:26 AM
#3
Yeah worth seeing if it comes back after you've cleaned it off. If it does, then it's worth thinking about getting the water pump and bypass changed. It's good if it can be combined with a cam belt change since you have to take all the belts off anyway to get to the water pump.

[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
01-10-2016, 06:26 AM #3

Yeah worth seeing if it comes back after you've cleaned it off. If it does, then it's worth thinking about getting the water pump and bypass changed. It's good if it can be combined with a cam belt change since you have to take all the belts off anyway to get to the water pump.


[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !

Andy-R.
Posting Freak
1,889
01-10-2016, 10:53 AM
#4
Is it possible for some coolant to be forced out if theres too much in there, just wondering as this has only happened since I topped it upto max and it's normally just below that, it's now returned to it's normal level and the leaked coolant doesn't look freshHuh

40mm Lowering Springs, Re-sprayed Front, 6000K HID's, Re-furbed alloys, Bandit Induction Kit (cheers Chris), Raised boot spoiler with LED, Blue calipers with silver decals, De-badged rear, Chrome Oil Filler Cap (thanks to Chris again), White LED dash bulbs, Blue a/c control bulbs, Blue door markers and interior lights, Sony head unit, Chrome Lexus tax disc holder, TRD side skirts, Original Saloon Front Bumper re-fitted instead of Sportcross

[Image: Lf9Nl.jpg]
Andy-R.
01-10-2016, 10:53 AM #4

Is it possible for some coolant to be forced out if theres too much in there, just wondering as this has only happened since I topped it upto max and it's normally just below that, it's now returned to it's normal level and the leaked coolant doesn't look freshHuh


40mm Lowering Springs, Re-sprayed Front, 6000K HID's, Re-furbed alloys, Bandit Induction Kit (cheers Chris), Raised boot spoiler with LED, Blue calipers with silver decals, De-badged rear, Chrome Oil Filler Cap (thanks to Chris again), White LED dash bulbs, Blue a/c control bulbs, Blue door markers and interior lights, Sony head unit, Chrome Lexus tax disc holder, TRD side skirts, Original Saloon Front Bumper re-fitted instead of Sportcross

[Image: Lf9Nl.jpg]

steviewevie
Posting Freak
7,993
01-10-2016, 01:37 PM
#5
There's an overflow pipe in the coolant tank by the radiator, it shouldn't be forced out elsewhere, I think.

[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
01-10-2016, 01:37 PM #5

There's an overflow pipe in the coolant tank by the radiator, it shouldn't be forced out elsewhere, I think.


[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !

russelllinn
Posting Freak
1,034
01-10-2016, 03:21 PM
#6
I would check the by-pass pipe and cleaning is a good idea to see if it comes back, although i have read before now, somewhere, that the water pump does fail and leaks arounfd it, if it is def worth sorting sooner rather than later!!
russelllinn
01-10-2016, 03:21 PM #6

I would check the by-pass pipe and cleaning is a good idea to see if it comes back, although i have read before now, somewhere, that the water pump does fail and leaks arounfd it, if it is def worth sorting sooner rather than later!!

Andy-R.
Posting Freak
1,889
02-10-2016, 02:14 AM
#7
russelllinn I would check the by-pass pipe and cleaning is a good idea to see if it comes back, although i have read before now, somewhere, that the water pump does fail and leaks arounfd it, if it is def worth sorting sooner rather than later!!

Oh wonderfull this is the last thing I need right before christmas and no work coming in:crying:

Which ones the by-pass pipe?

40mm Lowering Springs, Re-sprayed Front, 6000K HID's, Re-furbed alloys, Bandit Induction Kit (cheers Chris), Raised boot spoiler with LED, Blue calipers with silver decals, De-badged rear, Chrome Oil Filler Cap (thanks to Chris again), White LED dash bulbs, Blue a/c control bulbs, Blue door markers and interior lights, Sony head unit, Chrome Lexus tax disc holder, TRD side skirts, Original Saloon Front Bumper re-fitted instead of Sportcross

[Image: Lf9Nl.jpg]
Andy-R.
02-10-2016, 02:14 AM #7

russelllinn I would check the by-pass pipe and cleaning is a good idea to see if it comes back, although i have read before now, somewhere, that the water pump does fail and leaks arounfd it, if it is def worth sorting sooner rather than later!!

Oh wonderfull this is the last thing I need right before christmas and no work coming in:crying:

Which ones the by-pass pipe?


40mm Lowering Springs, Re-sprayed Front, 6000K HID's, Re-furbed alloys, Bandit Induction Kit (cheers Chris), Raised boot spoiler with LED, Blue calipers with silver decals, De-badged rear, Chrome Oil Filler Cap (thanks to Chris again), White LED dash bulbs, Blue a/c control bulbs, Blue door markers and interior lights, Sony head unit, Chrome Lexus tax disc holder, TRD side skirts, Original Saloon Front Bumper re-fitted instead of Sportcross

[Image: Lf9Nl.jpg]

steviewevie
Posting Freak
7,993
02-10-2016, 02:20 AM
#8
The bypass pipe is the part labelled 16268 in the diagram below, near the top and left of centre, but it is the seals that get replaced, labelled 16268F (full part number is 90301-17016). As you can see, you need two of those.

[Image: diag_1iYgaY2.png]

[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
02-10-2016, 02:20 AM #8

The bypass pipe is the part labelled 16268 in the diagram below, near the top and left of centre, but it is the seals that get replaced, labelled 16268F (full part number is 90301-17016). As you can see, you need two of those.

[Image: diag_1iYgaY2.png]


[Image: Sig-enginebay.jpg]
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !

Andy-R.
Posting Freak
1,889
02-10-2016, 02:41 AM
#9
Cheers Steve, just had a look at the by-pass and it seems fine, the leaked coolant's more at the bottom of the pump so i'm guessing the seals gone the pump looks quite new so i'm guessing it was done when the belts where changed and they don't need doing again for another 20 odd K, have cleaned it up anyway so will see if it comes back. Cheers guys.

40mm Lowering Springs, Re-sprayed Front, 6000K HID's, Re-furbed alloys, Bandit Induction Kit (cheers Chris), Raised boot spoiler with LED, Blue calipers with silver decals, De-badged rear, Chrome Oil Filler Cap (thanks to Chris again), White LED dash bulbs, Blue a/c control bulbs, Blue door markers and interior lights, Sony head unit, Chrome Lexus tax disc holder, TRD side skirts, Original Saloon Front Bumper re-fitted instead of Sportcross

[Image: Lf9Nl.jpg]
Andy-R.
02-10-2016, 02:41 AM #9

Cheers Steve, just had a look at the by-pass and it seems fine, the leaked coolant's more at the bottom of the pump so i'm guessing the seals gone the pump looks quite new so i'm guessing it was done when the belts where changed and they don't need doing again for another 20 odd K, have cleaned it up anyway so will see if it comes back. Cheers guys.


40mm Lowering Springs, Re-sprayed Front, 6000K HID's, Re-furbed alloys, Bandit Induction Kit (cheers Chris), Raised boot spoiler with LED, Blue calipers with silver decals, De-badged rear, Chrome Oil Filler Cap (thanks to Chris again), White LED dash bulbs, Blue a/c control bulbs, Blue door markers and interior lights, Sony head unit, Chrome Lexus tax disc holder, TRD side skirts, Original Saloon Front Bumper re-fitted instead of Sportcross

[Image: Lf9Nl.jpg]

Recently Browsing
 1 Guest(s)
Recently Browsing
 1 Guest(s)
Related Threads…
Replies 4
Views 334
18-10-2021, 01:34 AM
Last Post by Rabster
Replies 7
Views 433
27-09-2017, 12:34 AM
Last Post by Phil01