Hesitation Problem

[87turbo87]

Guys...hope all is well.

I took my stock '87 911 turbo out yesterday after sitting for approx two months. When I got it out to the highway I noticed some hesitation around 3k rpm (when boost started to come on). After 3700 all was smooth....

Any thoughts?

Thanks in advance for your help.....

[jwasbury]

Sounds like it could be fuel mixture or ignition issue. Did you put any fuel stabilizer in the tank before the 2 month lay up? Stored with the gas tank full?

I'd go through the basic tune-up checklist, check fuel pressure, check plugs, wires, cap & rotor, set ignition timing, etc...start with the basics.

[mark houghton]

Could be an O'ring in the IC plumbing about to go, starting to leak when boost pressure builds. That would cause a pig rich condition and associated loss of power. One of many possibilities.

Follow Jacob's thoughts, though. Check all the basics first.

[wjfk32]

^^^^^^^^^^^^^^
Everything they said....

Plus-chk all hoses,ignition-electrical,mechanical-Take your time--get a chair and sit behind the car,ponder,chk-list,&get to work...

For me I did it...AND still couldn't figure it out...Finally pulling the plugs/looking at them,,,Gave me my answer..

Maybe some Marvel myst. oil/gas line will clear it up.

[Blaine Sellie]

Same thing happened to me last year....and became worse over time. Mine was a sticky fuel head plunger..cured in 20 minutes my running Techron concentrate in the fuel....cheap option.