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| What the hell is THIS stuff? (Page 1/1) |
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fierobear
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NOV 04, 06:52 PM
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I've been struggling for months to get ONE torx bolt out of the waterpump on my 88GT. I've been working at it for a while. Coolant was drained several months ago. I had to break the water pump in half to get it out of the car, around the stuck bolt. Finally got the pump off today, and I found all this crap inside the water pump...what happened here???
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fieroguru
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NOV 04, 07:04 PM
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Probably some kind of stop leak additive.
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Vintage-Nut
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NOV 04, 07:40 PM
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Do you know that the system was completely flush and then filled OR added antifreeze/coolant later, perhaps from another brand? ------------------
Original Owner of a Silver '88 GT
Under 'Production Refurbishment' @ 136k Miles
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Patrick
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NOV 04, 07:42 PM
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fierobear
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NOV 04, 07:47 PM
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| quote | Originally posted by fieroguru:
Probably some kind of stop leak additive. |
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I never added any stop leak.
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fierobear
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NOV 04, 07:48 PM
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| quote | Originally posted by Vintage-Nut:
Do you know that the system was completely flush and then filled OR added antifreeze/coolant later, perhaps from another brand?
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I've done every water pump and coolant fill for 20 years. I always used good quality antifreeze, and I use distilled water.
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Stingray92
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NOV 04, 07:53 PM
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Aww that looks like dung, worse yet is everywhere else. I saw something similar yearzz back on an escort, car would over heat but radiator was cold.
Not sure the best way to go about fixing it but I would try some sort of flush. Good luck getting it sorted out.
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Vintage-Nut
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NOV 04, 10:08 PM
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Frenchrafe
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NOV 04, 11:39 PM
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Corrosion due to the coolant additives breaking down and the water becoming conductive.
Aluminium oxides and salts.
I've seen quite a few old engines with this type of build up in the coolant passages.
I've even seen Jaguar cylinder heads completely ruined with this type of corrosion / errosion of the metal.
Cars that sit for long periods seem to be more prone to having the coolant break down and the electrolysis starting.
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"Turbo Slug" - '87 Fiero GT. 3800 turbo. - The fastest Fiero in France! @turboslugfiero
https://youtu.be/hUzOAeyWLfM[This message has been edited by Frenchrafe (edited 11-04-2025).]
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Vintage-Nut
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NOV 05, 10:45 AM
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Frenchrafe has a good point:
What is the last time you drained/flushed/filled the coolant system before draining it to replace the water pump?
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