May 28, 200520 yr What part of the engine are you trying to treat? Induction system, or crankcase? If you're going for the induction system (the whole suck some in, turn off engine for 5 minutes thing), since you already know where it is, the brake booster vacuum line would be fine. It'd get the job done. Or, you could remove the aircleaner, and slowly pour some down the throat around the injectors. That works as well and would probably be even easier than yanking a vacuum line. Skip was referring to the PCV line.. there would be lines running from the block to the intake manifold. I'm not aware of their locations/routing on the EA82.. else I'd give you a description. On the EA81, they run from the valvecovers to the back of the intake manifold right under the carby.
May 28, 200520 yr If you follow the big vacuum hose coming out of the driver side valve cover, it will lead to a 'T'. Follow the same diameter hose down out of the T to the intake manifold. There's a smaller hose leave the 'T' to the air intake tract. Remove the hose from the 'T' going to the intake manifold (not the intake tract) and slowly pour the seafoam in there - a funnel will probably help. This would be a good time to check/replace the PCV valve as well if it hasn't been done before.
May 28, 200520 yr He's trying to resolve a chronic "pinging" issue; he's down to thinking of trying to get the carbon out of the engine.
May 28, 200520 yr He's trying to resolve a chronic "pinging" issue; he's down to thinking of trying to get the carbon out of the engine. tried higher octane gas?
May 28, 200520 yr His timing is correct, he's running high-test, and he's got the O2 sensor disconnected now. Still pings. tried higher octane gas?
May 28, 200520 yr maybe the valves need to be adjusted? assuming that the dist. cap and rotor are from the dealer, maybe you should swap in a different distributor, or maybe the camgear that drives the distributor is defective. or the coil/etc?
May 29, 200520 yr Alan, The problem you are attempting to solve (pre ignition) can be manifest in carbon deposits on the head surface. If these deposits are in evidence, they may be large enough to cause not only the ignition of the fuel air mixture but also an artificial rise in the compression. pressure. Do you have the facilities to run a compression check? Have you the financial reserves to have a "Motor Vac" done? please see this link http://www.dynatune.com/motorvac.htm p.s. my email to you was bounced by your server
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