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