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While the engine head in the shop, I am trying to get ready for it. How do you clean where the lifters are and cylinders? When I removed the head, some junk got in there, coolant, oil crust and dirt. I saw one video where he vacuumed out the debris, sprinkled Seafoam and brushed lightly. If...

I have removed the engine head from my 94 YJ which has about 180k miles. I took it apart because of exhaust manifold bolt #6 was broken off and stuck in the head. I will take it to the machine shop for removal. In addition, what kind of services do you recommend while it is the shop? I have...

This is my 94 YJ 2.5 with broken exhaust manifold stud stuck in the header. I was told by a guy that it is difficult to weld a nut without removing the head because of where it is. The only way is to drill and tap. Is this guy right? In general, Is it better to use welding method or drill...

I am installing new catalytic converter. This is my first time working on the exhaust system. I have removed the skid plate and supported transmission with two jack stands. My question is do I need to put the skid plate back on before I start the engine for checking exhaust leak?

Thanks. Because of age of my jeep, emissions testing is not required. I will go with the cheaper ones.

I am in the process of replacing the catalytic converter from my 94 YJ 4-cyl because of broken honeycomb chunks clogging the exhaust. I've thought about not having a catalytic converter and having a straight pipe instead. But I decided to have one. Now, Can I replace it with cheaper ones (<...

> Post pics as you’re going. This is next on my list and I’m a little nervous myself. I have an 89 4cyl with exhaust manifold leak Did you replace yours?

I am in the middle of replacing Serpentine belt and water pump. I will Thermostat housing bolts because I can see rust on the bolts. Do you recommend replacing 4 water pump bolts? I don't see any damage or rust on the bolts though. By the way, these bolts are factory original, 1994.

I have a stock 4-cyl 94 YJ with 180k miles. Over the years, I have not done anything to my Jeep, no lift, no mods. Although you experts may strongly disagree, I think it runs great based on my VERY amateur mechanical knowledge. This is my first car I bought right after college, and want to...