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The mkiv Supra Owners Club

Overheating Part 2


Alex

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Originally posted by Alex Holdroyd

OH MY GOD!!!!!!!

 

You'd think they'd have a feckin waterpump in the country....

 

"you'll have to wait 3 weeks"

 

3 WEEKS are you INSANE!

 

Hmmm...I had too wait for a part for my car when it was at Leons last time....none in the country story. The order was put through as VOR (vehicle of road) with the part coming from Holland in 7-10 days.

 

Try another garage and tell them the vehicle laid up and see if it changes anything.

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Guest Martin F

I thought nearly all parts came from the warehouse in Holland, with the 2-3 working days lead time.

 

Strange.

 

In 3 weeks you could get one from the US.

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The water pump is a relatively simple bit of kit comprising of a housing, an impellor, a bearing and a seal. A failure of any of these bits would, in 99.99% of cases, result in a water leak from the pump.

With your symptoms you really do need to get a proper pressure test done before you go shelling out on stuff you dont need

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I had a 5 series BMW in the other week, very similar problem. Did a pressure test, AOK, as was combustion gasses in coolant and HC sniff test. Turned out to the plastic water pump impeller was loose on the shaft. The engine gained temp until it boiled on the M/way, around town, low revs, it was fine. new pump fixed it, luckily the owner was a hawk on watching his instruments and didn't cook it! From a brief read of your tale I think you must have a look at the pump. You can also wire up the fan to the pulley with some soft gardening wire, so it runs at engine speed. Do it neatly and securely, and don't blame me if the wire comes undone and scythes through the rad or worse. This will isolate the viscous couling as the problem (for free...).

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know that as MkIII's grew long in the tooth their water pump impeller blades could rot away. No leaks, but no flow either.

 

Worth checking out that thar fuel pump. Don't forget you will need a replacement water (I'm obsessed, I just noticed that I typed fuel pump instead of water pump, twitch twitch) ahem, replacement water pump gasket as well.

 

Also, Alex's fan was a bit more freely rotatable by hand compared to mine. Not much, but enough to be noticeable. Just how freely rotating can they be to be classed as bust? I've got some garden wire (it's bloody handy stuff when working on cars!) if you want to try wiring up the fan as CW describes...

 

Does anyone know if you can get the water pump off without removing the crank pulley? I couldn't figure it out on the fubar engine block I had, and that was stood on a pallet with everything else removed from it!

 

I'm waiting on a fuel regulator from Japan as well - I swear they don't stock any MkIV Supra parts in this county. But most of mine come from Belgium, not Holland... Odd.

 

-Ian

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Alex

 

Is yours a J-spec? If it is and you don't have any luck with the garages there I could try and get you one here in HK, as they had stock when mine needed replacing.

 

I could get it posted to my head office in Swindon for free, you'd just need to pick it up there or pay for the postage.

 

Drop me an email at: [email protected] if you need help.

 

cheers

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Cheers All,

 

Lexus do a similar part

 

Part no. 16100-49846

and a conversion part 90445-12291

 

According to japarts.com this should fit...can anyone confirm this?

 

I'll phone the Lexus garage tomorrow to check on the availability...then I'll give Toyota UK a piece of my mind!

 

I think its bl00dy irresponsible for a Multinational Company such as Toyota to not have key parts redilly available is just proposterous.

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Alex,

 

I must admit that I've not been following this thread too closely, but are you trying to get the J-spec water pump, or a UK-spec part? I don't even know if they are the same, but maybe your dealer is playing up the "import" thing with the lead time on your water pump...

 

Just a thought!

 

(Euro spec water pump assembly part number looks like 16100-49845)

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Originally posted by Ian C

 

 

Does anyone know if you can get the water pump off without removing the crank pulley? I couldn't figure it out on the fubar engine block I had, and that was stood on a pallet with everything else removed from it!

 

-Ian

 

No the crank pulley stays on!

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I thought it would be ridiculous to need to remove the crank pulley, but I couldn't figure it out. But then, I also had spent a few hours and more than one beer pulling everything else off the engine (all bits still up for sale :) ) and had an attack of the "can't be arsed"...

 

-Ian

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I've got a Water Pump on its way!!! should be here very soon.

 

Many thanks to the person who found it and reserved it for me.

 

BUT now I can't get a friggin gasket!! What type of gasket is it and can I jerry-rig it for sale purposes?

 

Toyota say 10-12 working days! :eek:

 

Anyone got one lying about for some inexplicable reason!

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You can try a tube of that instant gasket stuff - it has held up well on my thermostat housing for about six months, but I wouldn't recommend it for extended duty . . . should be fine for a couple of weeks. Mines Loctite, blue goo in a white tube.

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I used hermatite red on my MkIII's thermostat housing, and that held out ok. I've used it as a temporary seal on a turbo coolant pipe as well, and that worked too. Still got the tube of goo if it's needed :)

 

For short term use, it should be OK. Not that I'm advocating landing a nice, honest car dealer with a dodgy repair to sort...

 

-Ian

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