Herb Sanders wrote:

This WhiteKnight/Space Ship One wallpaper for your desktop is

so neat, I

could not resist sending it all of you.

Herb Sanders    OK / TRY THIS MODIFIED LINK



http://www.eaa.org/desktop_wallpaper:html

How's my old RX7 running Herb? Still using Mobile One in it?

Paul Lamar

Herb Sanders wrote:

Hi Paul, Still using Mobil 1. I've only put about 3000 mi on it -

half of

that was the trip back to San Antonio & Memphis. I mentioned a

worrisome

vibration - I put on a new set of Michelins, had the wheel

bearings

cks/lubed, checked rear member and filled with fresh synthetic

gear lube,

and generally cked over, but it did not cure the vibration.

It has a rising and falling vibration that reminds me of a light

twin with

the props out of sync. The front shock struts are bad and I will

next

replace all the shocks and sway bar bushings, and do a wheel

alignment.

I was getting my truck serviced this morning at my pilot/buddy's

tire store

that does my auto maint and I am going to carry it out to him to

drive and

try to find the problem. It is worse at about 3500 to 4000 (55 or

60 mph)and

Seems to be more engine related. You can bump it into neutral at

75 or so

and let it coast down and it is pretty smooth. On the other hand,

you can be

in park and run the engine up and feel the worst vibs at 3500 or

so.

May even be something simple like a bad alternator bearing - I

haven't owned

a rotary before, but no one has mentioned any natural tendency to

vibrate

and any certain rpm.

See you at Osh. Tell Barney to get some directions on the forum so

we can

find his place for the gathering he has proposed.
Regards, Herb

Herb check the bolts holding the torque converter to the flex plate.

Just a guess.

Also use an inspection mirror and check the flex plate for cracks.

Paul Lamar

Herb,
A quick way to eliminate all the engine accessories from the equation is

to remove the belts, and briefly run the engine up to 3500 rpm.  If the
vibration

disappears, it is due to one of the accessories.  You can start

replacing belts one at a time until you find the culprit.  Also, check for a
bent pulley or

defective belt.

Mark S.

Herb,

How are you getting to Osh?

Monty

 
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