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mice shredded AF. Advice on cleaning and repairing AMM & TB? 200 1989


I'm cleaning the Throttle Body on my '89 245 LH2.4 EZK for the first time. An ounce of prevention (checking AF box before attempting to start, after car sat for a few months) would have saved me lbs of cure and a few hrs of work. Mice had shredded the air filter, and on starting it last week lots of paper was sucked into the AMM. Within 1/2 minute it was running rough and "check engine" light was on.

I removed and cleaned the AMM w specific AMM spray and tweezers. I've found that the mounting bolt from the bracket on the wheel well has punched a clean hole thru the plastic/bakelite body of the AMM. The thick rubber washer wasn't in place to limit the depth of the bolt. The engine had run Ok for a few yrs, but I could never get it to pass emissions. I plan to plug/seal this hole from the inside with a silicone gasket sealant and smooth it flush to the inside wall. Does this seem OK? I could fill it w epoxy if better.

I have a clean matching accordian pipe off another 240.

I took off the Throttle Body and cleaned it w TB cleaner. Of the 2 brass vac fittings on top, the larger diam fttg is clear - I can blow thru it. The smaller diam fitting (w larger 14mm hex) is not clear after 5 applications of TB cleaner into it. The fitting is unmoveable w a box wrench and strong hand force while holding it flat on the benchtop. Otherwise I'm ready to reassemble. Advice on this fitting removal and cleaning?

I have a new TB gasket, plus I put the shopvac hose to the manifold opening to clear any more shredded AF. It seemed clean.

While I have it this far disassembled I'm going to install a new oil separator and a new flame trap, I'll clean the old ones another time for re-use. It's 3 degrees F and I'm working outside!

This AMM is Bosch # 0 280 212 007 I have another w same # that I replaced a few yrs ago (not sure if its good). Have the test procedure from Lucid if I need to. I also have a clean AMM Bosch # 0 280 212 016. Not sure about compatibility for the LH2.4 EZK

I'll run the OBD codes after reassembly and startup. If I hadn't neglected to check for mice I would have put off the other maint and I wouldn't have found the problems mentioned above. I have a new Mann AF.
I love driving (and maintaining) these old 245s. Love this BrickBoard too. Thanks to all - throw some $ into the pot. BB is worth it!

Steve






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