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Old 12 November 2011, 16:07   #11
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Steve, the emm is cooled by water from the block just before it goes out through the tell tale. You mentioned that the tell tale isn't as strong as normal. There might be a bit of crud in the small bore hose that goes to the emm.
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Old 12 November 2011, 16:45   #12
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No replies over on the owners forum

I would have thought anything that was small enough to get in through the intake holes would not lodge in too many places - I guess they are only 4-5mm holes.

The overtemp was only very brief when the initial alarm went off - I guess maybe it lasted for all of 30 seconds. No problems with engine running and there have been no more alarms - just that I have been watching the temp gauge closely and noted it was running a bit warmer than usual but I guess you would say it is within an acceptable operating range.

The highest it has been in normal cruising has been about 80 C and the temp seems to drop back as you get nearer WOT.

Oh well I might pull the stats out and have a look - hopefully you don't need a new gasket or anything to put them back in...? I guess if they are plastic bungs they are probably sealed with an O ring? If it looks like new parts will be required I'll just go for another sea trial now I have removed at least some crap from the system and see if it is OK now.

Thanks all
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Old 12 November 2011, 18:34   #13
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Yup they are "O" rings, put some grease on the threads when you put em back in. Might be worth taking the stats out & putting the hose on the flushing adapter by the tell tale & giving it a flush through.
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Old 12 November 2011, 22:06   #14
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I haven't experience on Etec's, but a back flush on the EMM pipework is probably easy to do and worth a go whilst you're looking at the thermostats.
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Old 13 November 2011, 06:13   #15
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Those rpm's looked a bit low on your data download.
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Old 13 November 2011, 12:18   #16
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Quote:
Originally Posted by Chris View Post
What did the yanks suggest ?
JimH is still composing his reply, give him chance it's only been a couple of days
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Old 13 November 2011, 16:04   #17
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Well I took out the thermostats and there was one tiny bit of green weed in the port bank and nothing in the starboard bank. Went out for a run and I think the temps are pretty much back to normal - definitely running cooler. The tell-tale (which I believe comes from the EMM) is hand-hot at idle (I'd guess about 40-45 degrees C) and warm at 2000rpm in neutral (again a guess - but 25-30 C) so I think that should be happy too. Going to plug in the computer and re-check the amount of time in each temperature band just to make sure but I think the problem is sorted.

Thanks for the input as always
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