performance lack after plowmans kit

[MudHog]

Originally Posted by BamaG14

Mudhog is the stock setting for g16 .004 for the valves just like my g14 ? Just thinking what the advantage is with the valves being twice as loose as stock . Also I know it needs to be on compression stroke but I used to adjust valves on one of my cars in the old days which had solid lifters with it running . I tried adjusting my cart similar by letting it turn over and adjusting them that way. Also while not turning over too . Seems to run good anyway.

I am not sure on a G16 as I have a G22, but the service manual for my G22 says 0.004" (cold). My information is what Don had me do on my cart which has his G22 Performance Kit. The only thing I can see is that 0.008 is stemming from a hot engine and 0.004 is from a cold engine, but that is just a thought.

[panteramatt]

Hmmmm. I did adjust the valves cold maybe their too far out? That still wouldnt cause a performance decrease but could be the cause of the smoke I had under load.

[pachanga90]

Valve adjustment is a definite cause of power loss,a loose setting delays valve opening(retarded valve timing)thus dropping power.These motors are very touchy with tuning,slight variances from specs can cause performance issues.I had the valves a little too tight,not quite .003",and it was popping bad.Reset it and it was fine.Hot-Set is more consistent(and painful at times!),because the expansion-rate is usually consistent

[CAMPERCART2013]

I'm with pachanga hot .008on mine not sure it is the same for you?

[SandbaggerYDRA]

Originally Posted by CAMPERCART2013

I'm with pachanga hot .008on mine not sure it is the same for you?

I would think that the hotter it gets, the smaller the gap would be due to expansion. So .008 cold would get closer to .004 hot....

[dbmachine]

Don wants the engine good and hot. Several quarter mile runs then in the shop to adjust to .008 on a hot engine. The first time i removed my valve cover to check, the valves from factory wettings were driver side valve .004 and the passenger side was .003. Set them to .008 and gained an additional mph or 2. Before adjusting the valves, Don had me to do several 1/4mile runs and after each run i would get slower and slower by just a touch. Now there set to .008 and my runs stay consistant.

[pachanga90]

Yep,that's why a Hot-Set is better,since the expansion equalizes everything.If you set them at say .006 cold,they may decrease to .003 hot,now its under spec.Keep in mind,those specs don't really account for increased wear either,since a cart in its "normal" use,wouldn't get the high rpm use and associated wear that they get from recreational use.