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The mkiv Supra Owners Club

wet boot


stuart hydzik

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I would check all the areas around the seal are clear, the gutter like part of the boot. Also that no water is coming in around the window seal itself. Also maybe worth having a look at where the rear quarters meet at the roof, you should be able to see a join, if there is a gap there water could get in.

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Bootlid seals....

make sure the gutter is clear of muck / plant leaves etc. This sometimes builds up at the pivot point of the gas struts. Muck can also build up in the drainage points just above the rear light cluster...it normally drains out in a channel behind the light clusters....clean this area too, then pour some water down the channel with boot lid up and check it drains out and doesnt back up.

Wipe the bootlid metal clean where it seals against the rubber seal, then wipe the seal clean too.

Check for tears / rips of the rubber seal, and check that the joint (normally at the top between the two boot lid hinges) hasn't split.

Check that the seal is seated correctly on the metal upstand all the way round.

Run a thin bead of rubber cleaner (white stuff from a bottle is best) all around the centreline of the top face of the boot seal rubber, and shut the boot lid. Open it again and look for any areas of cleaner that hasn't been squashed by the boot lid sealing against the rubber...if you can see a regular even squashing, the seal is making good contact with the boot lid.

 

Rear window seal....sorry, not had this problem before but I've seen a couple of Supras that have had bad / old seals...its a possibility, especially if crud / green mouldy stuff has got in between seal and glass.

 

Rear wing....water can also get in through the wing mounting holes, especially if aftermarket wing has been fitted.

 

Other than the above, it could be tracking from an area further fwd, but I'm not sure how. You are not an aerotop are you ?

Edited by Ewen (see edit history)
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