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Old 29th November 2021, 07:59   #41
SD1too
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There's a torque specified for the cylinder block drain plug Billy: 20 Nm. The problem is that, due to the proximity of the exhaust manifold, there's very little room available for the head of the torque wrench. You won't be far off if you have to use an ordinary, standard length ring spanner.

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Old 29th November 2021, 09:04   #42
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Does that drain plug have a copper washer ??
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Old 29th November 2021, 13:13   #43
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Does that drain plug have a copper washer ??
No Jon, it doesn't.

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Old 29th November 2021, 23:45   #44
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No Jon, it doesn't.

Simon
Probably better to fit one then. Most cars have them and don't leak oil.---
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Old 30th November 2021, 08:04   #45
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Probably better to fit one then. Most cars have them and don't leak oil.---
That's certainly an option if there's a problem but my engine doesn't leak coolant through the cylinder block drain plug after applying Loctite and tightening it to the specified torque and neither did the KV6 which I helped with in the summer.

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Old 30th November 2021, 15:25   #46
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OK job done. I cleaned up the bolt, dried the threads in the hole as best I could with paper towel, gave the first 3 threads on the bolt a generous dollop of loctite and replaced it with my 13mm aviator spanner. Having refilled the coolant and been out on a couple of short journeys, the drive is bone dry. This happened last time however so I won't be convinced just yet. Seems promising though...
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Old 10th December 2021, 18:33   #47
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So the saga continues. I did the drain plug and I revisited the thermostat - it has no leaks. I tightened up the intake bolts and all the hose clips.

She's leaking again on my drive and the coolant is dripping off this clip with nothing leaking above it. In the photo I'm looking up at the front side of the engine. Is it the head gasket?

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Old 11th December 2021, 06:26   #48
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And if so do we have the timing tools in the club toolbox?

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Old 11th December 2021, 10:10   #49
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Is it the head gasket?
No it isn't Billy.

Are those the only two droplets you're seeing? They look extremely red.
Is the expansion tank level noticeably decreasing?

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Old 11th December 2021, 10:24   #50
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Hi Simon no I was watching it drip from that location making a small puddle on my drive - maybe one every 20 seconds or so. It doesn't drip forever and only seems to happen after more aggressive driving. The previous few days I pootled around town no more than 30mph and there was no leak. Yesterday I did some motorway and on return could see it dripping. I jacked her up immediately to see if I could isolate the source and this is the only place I can see coolant coming from. Oh and yes the drop in the expansion tank is noticeable - I won't risk driving for her now till I attempt another fix. Any other thoughts?
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