The weakest links in the 230 design are...in my opinion...

1. The external oil line on the back of the head to feed the head...its hard to get at to change and does love to leak...replacing with braided stainless line or solid metal...like brake line...is THE way to go.

2. The cam oiling is a bit weird overall...keep the oil CLEAN and problems wont happen there.

3. Exhaust manifolds like to crack...keep the exhaust pipe holders all in good shape and make sure to NEVER overtorque the manifold nuts.

4. Valve cover gaskets like to leak...if replacing one, work slow and careful to get it on and NEVER overtorque it.

5. The ignitor...distributor and coil assembly...is steel on the outside of the shaft and the timing cover it goes into is aluminum...they love to weld together. Take out the unit and clean any corrosion off the shaft and out of the hole...then reassemble with anti-seize compound on the shaft to keep it from doing it. If you need help getting it out because it is frozen, just ask!

6. Rear main seal leaks. You can change it, make sure not to line up the ends of the seal with the horizontal parting line of the block and filler block...that will make it leak more.

7. Oil pan gaskets tend to leak...good news, its easy to drop the pan without having to take other stuff apart.

8. The clutch is a pain to change, the bellhousing is difficult to get off...hopefully you dont have to do it, it is challenging to say the least.