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-----Original Message----- From: [EMAIL PROTECTED] Date: Thu, 8 Nov 2001 13:02:48 EST To: [EMAIL PROTECTED] Subject: [COUPERS] engine temp and spinner Ed, sounds like you have a valve guide getting ready to go- and the temp is just magnifying the symptoms. I've had a stuck valve and the sudden loss of power is frightening- you should have it looked at. Fortunately I was on a long final into Fresno and the loss in power was managable..... Jan Z Fresno > ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- > > With no spinner I had engine trouble of a loss of 400 rpm varible from 2100 > down to 1700 and below after 25 minutes of operation climbing to 2500 feet > OAT of about 14 degrees. Carb heat did not effect the problem nor changing > mags. Oil temp was 175 to 180. Upon decreasing rpm to about 2000 with > throttle the problem smoothed out. Landed and let the engine cool about 30 > minutes then flew about 15 more minutes to destination. I had never had the > engine sputter with the spinner on in about 150 hours of operation. I flew > the Coupe back to the mech and on the way at same OAT and 25 minutes of > operation the same event occured with same oil temp. I landed and let the > engine cool again. Flew on 15 minutes to final destination. I put the > spinner back on with a new back plate and the oil temp only went up to 150 in > same OAT after 35 minutes of cruise and climb. One mech says it was a stuck > valve due to high temp not related to the spinner, another says the stuck > valve was due exclusively to the lack of a spinner and fouled up airflow over > the cylinders increasing oil temp to higher than indicated. Coupe has the > fiberglass bowl. Anyone had experience with a stuck cyl at 175 oil temp then > have it smooth out after decent and cooling period? Would the best bet be to > pull all of the heads and have a look at the valve guides? Thanks ED > > -- _______________________________________________ Get your free email from http://mymail.juno.com ==^================================================================ This email was sent to: [EMAIL PROTECTED] EASY UNSUBSCRIBE click here: http://topica.com/u/?aVxiLm.aVzvvT Or send an email to: [EMAIL PROTECTED] T O P I C A -- Register now to manage your mail! http://www.topica.com/partner/tag02/register ==^================================================================
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