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  1. I am working on a 2002 Wrangler 4.0 automatic. I found this connected grounded to the left side of the block. I have no idea what it is or what it does. Any help would be greatly appreciated. Thanks so much, Jake
  2. I ordered some Manley pushrods from Russ Pottenger at Bishop-Buehl Racing Engines so I hope that issue is solved however when I went to put on the oil pump I noticed that the piston skirts are going past the end of the cylinders. Is this normal? I’m using a Scat 4.2 crank with custom 4.0 rods and Keith Black pistons.
  3. Hi Moses, I placed a straight edge across the valve tips and found a significant difference in the length of the valve tips so I took the head back to the machine shop to have them adjusted. Than I followed your advice and after checking the pushrods I came up with a difference .005. The length of the pushrods are between 9.5 and 9.55. If I’m correct using a pushrod that is 9.6 should give me the correct preload. Would that be correct? Thanks so much,
  4. On this engine in order to remove the lifters you have to remove the head again or is there a different way? Do you recommend using the installation lube on the sides of the lifters as well as the base?
  5. Thank you Moses for all of the information and your quick response, This is what I’m having trouble wrapping my head around. Comp Cams recommends to soak the lifters overnight and I have also read that to check the pushrod length correctly you need to check the length of the pushrod before applying the installation lube. If that is correct than you would need to install the cam, lifters and the head check your pushrod length. Disassemble the components soak the lifters, lube the cam lobes and reassemble the components using another new head gasket. What am I missing here.
  6. Greetings from Northern Michigan, I am in the process of building a stroker for a 2002 TJ. I need to check the pushrod length. The engine is still on the stand. Do I need to prime the lifters to get the proper pre-load? Thanks so much, Jake
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