Hesitation only under Load

Maybe someone has some insight on this before I tear my engine apart.

This morning I noticed on the highway that my car was exceptionally faster during acceleration. Just before I got exited the highway I pressed the accelerator about 50% while in 5th gear to change lanes, at this point I noticed a hesitation to accelerate.
Later tonight I noticed the Teggie was still faster than usual, and again I continously depressed the throttle about 50% or more in third, fourth, or fifth gear to notice a hesitation to accelerate. This also creates a faint shake in the motor. One time I did notice a little smoke. Revving her up to high RPM?s seems more powerful than usual?

I was thinking about doing the following:
Leak down test
Changing the spark plug wires (currently clean quality performance Sumitomos, but age unknown)

The ignition is less than a year old: Cap, rotor, NGK platinum?s

ECU codes: none

Other: She does spit a little blue smoke on cold days/cold starts, or after sitting all weekend (valve seals or ring?)

Miles: 179,500ish

I just assume to get a new motor or a V-Tec head…

Searches
http://www.g2ic.com/forums/showthread.php?t=100072&highlight=bog

http://www.g2ic.com/forums/showthread.php?t=92507&highlight=bog

http://www.g2ic.com/forums/showthread.php?t=95121&highlight=bog

I had a similar problem awhile back, though at different RPMs. In the lower RPM range (idle to about 3k) I would get a hesitation/stutter. Turned out one of my spark plug wires was arcing, therefore creating a misfire. It went wasn’t at noticeable at higher RPMs, due to the fact the engine was turning that much quicker. Simple fix was a new spark plug wire (ended up getting a new set of four though). You can see carbon arcing on the wire (the rubbery part that attaches around the spark plug) as it will be a lighter, almost white color. Looks like a mini lightning bolt (and in a way, that’s kind of what it is).

Not saying this is your problem but it’s an easy and quick thing to check.

HTH

– Kevin :slight_smile:

The wires look good…

I’m thinking it’s fuel. The extra Hp has to be a fuel issue. Maybe something wacked with my timing.

Compression test was a little low in one cyl.

anyone got a B18 in the Rochester Ny area?? :slight_smile: