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Water ingress via heater box

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Old Jan 20th, 2020, 15:30   #31
skysurfer
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Took the air intake grill off and found that debris had been blocking the heater box drain pipe....along with two of the missing metal air intake grill retaining clamps! As Derek says, the hose gets bent and forms a further constriction. Cleared it out and flushed it through which seems to have resolved the immediate leakage problem However, I'm still going to strip down the heater to inspect the matrix, heater drain plug and get it painted. Derek - do you have any of that foam left for wrapping the matrix as I'm sure mine's going to disintegrate.....
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Old Jan 20th, 2020, 22:41   #32
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Old Mar 27th, 2020, 16:37   #33
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Finally removed the heater box unit and matrix from my Amazon today. The 40 year old matrix is in good condition and just needed a good flushing. The heater box unit is also very sound with no major rust, so will just need wire brushing and a paint. I have bought a set of new foam seals from Brookhouse in addition to new drain hoses. The old foam has been bedded using a type mastic/sealant which has now been stripped back. Could anyone tell me what type or brand of mastic/sealant I should use when reassembling? It needs to be black to match the new paint on the unit. Many thanks.
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Old Mar 27th, 2020, 19:04   #34
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Ive had similar agh with mine. Im trying to get hold of black silicone but if I cant get some black around now, Ive got some clear.
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Old Mar 27th, 2020, 20:57   #35
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Sika EBT....comes in Black....remains flexible.....good stuff
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Old Mar 28th, 2020, 14:10   #36
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Butyl tape makes the job easy and neat. Search the Bay for sizes, both width and thickness. You don't need it very thick and you need double sided sticky.
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Old Apr 1st, 2020, 09:31   #37
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Job now completed. I've fitted a new aftermarket Scandix heater control valve to replace the original and the heater now works a treat. Probably the first time it's been working for many a year and I can now switch the heater off to stop it getting too toasty inside.....
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Old Apr 21st, 2020, 21:13   #38
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I had water ingress which caused my foot to slip off clutch. Cause was leaking inlet tap, available from Brookhouse.
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