Mailing List flyrotary@lancaironline.net Message #43716
From: Barry Gardner <barrygardner@gmail.com>
Subject: Re: [FlyRotary] Of topic (a little) no power in RX7
Date: Tue, 12 Aug 2008 13:37:44 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Pat,

I own an 88 convertible that used to be Jerry Hey's. Same miles on the odometer as yours. Just drove it from Chicago to Colorado for my son to use while he's at the Air Force Academy. Ran great. Got 23 mpg at 75 mph with the A/C on full.

Some ideas you've probably already thought of:
Air filter okay?
Do the injectors need to be cleaned? A pretty cheap fix, though you've got to peel the whole intake manifold off to get to them.
Factory computer? Then you've got less of a chance of an ignition issue. If it's got an after-market computer, then you've got the possibility of bad timing.

If you've got air, fuel and spark at the right time, that's the short list.

Vacuum leaks tend to show up with bad idles or wierd things when the car is going from fast idle to regular speed.

Maybe a plugged cat? Mine just got an "improved" exhaust and that pepped things up quite a bit.

Given that you've owned three 88's before, you must know what's "normal" and what's not.

Barry Gardner
Wheaton, IL
----- Original Message ----- From: "Patrick Panzera" <panzera@experimental-aviation.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, August 12, 2008 1:04 PM
Subject: [FlyRotary] Of topic (a little) no power in RX7


Hey gang,

I have an engine question, but related to the '88 Convertible I just bought
not an aircraft.

The car starts normally, not excessive grinding like a typical low
compression engine. There is no smoke, typical of bad seals, but it has no
power to speak of. I've owned three other 88's (even a clone to this one so
weight is not at issue) and this is by far the slowest. The engine is
"tired" for sure, with over 180k on the odo, (this is an all-original,
one-owner pampered hangar queen, with all freeway miles) but my question is,
what exactly is "tired" with a rotary?

I would imagine that new seals all around are in order, but where is the
blow-by, and if it is a compression issue, why does it start so well?

Thanks!!!

Pat



--
Homepage:  http://www.flyrotary.com/
Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html

Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster