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Go Back   Madabout Kitcars Forum > Mad Build Area > Marlin 5exi builds

Marlin 5exi builds Calling all you sexi builders....sorry 5exi builders, show us your progress.

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  #1  
Old 21st March 2008, 14:38
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bigrich bigrich is offline
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Exclamation 1.6K Series Water Leak....check yours!

Hi all,

Noticed a few weeks ago after the car was parked up in the garage for 24hrs a 10p sized blob of coolant on the floor under the engine!

AARRGHHH - Head Gasket!

I reckoned the worst, but then thought about it sensibly.

Compression check = good
Plugs = look fine
Misfire = no
Oil in water = no
Mayo on oil filler = no
Performance = still smiling!

....so started looking through web forums for a clue.

Turns out that early 1.6K series units with the plastic inlet manifolds had an inferior inlet manifold gasket material (black)....the gasket seeps and allows water to pass by it.

I checked the engine again and the water that I had seen tracking round the head joint was infact running down from the inlet manifold...and it has a black gasket!

...so I reckon Head Gasket fine (fortunately)...and 25 later I've bought a new Rover inlet manifold gasket (you need the green one) and new studs and locking nuts to fit it (instead of the set screws used originally)

All being well I should be doing the job this Saturday....so I'll let you know how I get on.

Rich
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Old 21st March 2008, 14:59
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Ah these things are sent to try us.

Bit far for you maybe but looking at pod and Bruntingthorpe this year with the car. Also Detling. Weather permitting.
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Old 25th March 2008, 14:42
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Problem solved!

Changed the gasket on Sunday for the new green one and changed set screws out for proper studs....looks like a previous owner of the engine had tried to seal it before as the gasket was covered in silicone sealant too!

Now doesn't leak!

(But I'd forgotten what a pig the car is to bleed air from when you fill the coolant!)

Rich
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