H5 URF Engine woes update - Good news!

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Mcalvert's picture
Last seen: 1 day 43 min ago
Joined: 17/04/2014
H5 URF Engine woes update - Good news!

So when the engine suddenly lost power and started sounding like a bag of nails, I shut it straight down and feared the (expensive) worst.

Having checked for obvous problems this morning, I couldn't find much amiss.  Wet on the inside, dry on the outside, and the compression readings looked OK.  I started her up for a few seconds - she ran, but sounded awful.  Dave Gemzoe was kind enough to come around, and using his considerable engine building experience, set about looking for evidence of what the problem might be.  Again, nothing obvious, so we tried to fire her up again.  Outcome - one exhaust primary which had come loose, and nothing more Woohoo

Many, many thanks to Dave for having given up his time so freely.  This fix was trivial, but the amount of engineering knowledge in Dave's head is astounding!

So, a good end to a good weekend.  Fantastic banter and competition in Class 3 as always.  Particular congrats. to Danny Malkin and Jeff Smith for two spectacular runs!


Comp Sec
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Last seen: 10 hours 3 min ago
Joined: 14/01/2015

Great News Michael..... 


Chris Bramall - Competition Secretary   Northampton Motorsport Lotus Seven Club Speed Championship 2018    
Tony Smith
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Last seen: 2 days 21 hours ago
Joined: 17/04/2014

Phew, that's a relief!!!!!!!!

Great fun weekend even in the wet!!

Aeroscreens's picture
Last seen: 2 min 24 sec ago
Joined: 17/04/2014

Glad to hear the x/flow survives to fight another day Thumb Up


Member since March 1998

Mark Durrant
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Thumb Up

Last seen: 10 hours 27 min ago
Joined: 27/09/2014

And there I was planning an Ecoboost sale :-o

Thats good news Michael.

Geoff Corker
Last seen: 2 days 21 hours ago
Joined: 17/04/2014
Glad that the problem was not expensive. A great weekend, if a trifle damp.