[ROVERNET - UK] Lumpy idle

Vern Klukas vern at inkspotco.com
Tue Jul 5 04:49:29 BST 2005


One of the drawbacks of a light flywheel is lumpy idling. With a 
better than 25% reduction in mass,  I'd bet that you will never see a 
smooth idle again.

Yours
Vern

>I've completed a rebuild of my 2000TC engine before starting on the 
>2200 overbored motor for my other 2000TC.........I wanted to try a 
>few things on this engine before starting the other..........One of 
>the things was lightening the flywheel.................The regular 
>flywheel weighed in at 21.6 lbs.............I've had it shaved and 
>lightened and balanced to 15 lbs which did not look too 
>radical.......(LOL not after i seen a  guys Mazda flywheel at 5.5 
>lbs for racing)....albeit i've lost half of the EP , TDC , and 6 
>degree stamped markings........I did not do anything else to the 
>crank or rods and pistons......ie lighten or balance them...(money 
>to play with practice motor ran out   LOL) ....Now up and driving it 
>i'm very happy with the response...........it seems to spool up much 
>quicker(no more power but it gets there quicker i 
>believe)..........I'm now thinking with the overbore and added 
>torque that this will be a worthwhile  endevour............One 
>drawback is the idle is not as smooth as it was .......not bad but 
>lumpier........but i'll be playing with the timing and the carbs to 
>see if it gets better........ They were rebuilt last year so i'm 
>ruling them out.......Not balancing everything might also have 
>contributed to this idle but i will be doing that for the 2200 
>overbore motor.............I'll keep everyone informed as to my 
>final evaluation but for now i'm quite happy
>
>An aside to the chap with the hot idle problem in the 
>3500............Try a bottle of Red Line Water Wetter in the rad 
>added to your coolant......The stuff works great and really lets the 
>engine run cooler................Cheap and worth a try 
>.........Regardless the engine runs cooler
>
>Happy Rovering
>
>Bill Robertson
>
>
>
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-- 
Vern Klukas                             I'm a little . . .
Inkspot Type & Design
vern at inkspotco.com



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