chrysler/jeep 3.7 v6 4.7 v8 valve spring tool

short video of changing a couple of valve springs on early model chrysler 4.7 . i designed this tool for the late model 4.7s with dual spark plugs ,still works on early motors and most 3.7 v6 motors . all valve springs can be changed without removing motor, or raising cab . tool pictured has changed about 30.000 valve springs on 2006 and newer ram 4.7 trucks .if you have ever had a valve spring problem , and used chrysler/miller tool # 8387 , or simular .. you know what a task it is . with a good helper i have changed a full set of springs , with motor in truck in under one hour . on stand about 15 minutes .video is not very good, i will update when i have a new one . chrysler/jeep 4.7 valve spring, seal, lifter, or rocker arm fallen problems ? . thanks for watching now available 314 456 3056....thanks.sorry video is old, and not worth a shit . have new video . new spring tool 3.7 4.7 chrysler , jeep .tool has been refined, and workes PERFECT . i have these tools available on ebay . you can call me at anytime , and i will guide you through it .call , or you can mail me at we are going to do a new video soon that will walk you through the job ! DONT BE SCARED . its a tough job . with the tools its not so tough .

More Videos...

new spring tool 3.7v6 4.7v8 easy spring/seal/rocker arm replacement
quick video changeing two valve springs on an over head cam v8 .or v6 chrysler , or almost any over head cam motor .new valve spring compressor makes valve springs/seals replacement easy .if you have tryed chrysler/miller tool # r8387, 8426, or 8516a tool for these you know it is almost impossable to do . this tool was made for 2006 and newer chrysler 4.7 v8 over head cam , dual spark plug motors , will also work on older 4.7v8 and 3.7v6 motors.valve springs/seals can be changed in vehicle . this tool will pay for itself with the first single spring replacement ! .i have heard stories about chrysler / jeep dealers charging $ 2500 for a valve spring change !!! when you can do it yourself in a couple of hours . every chrysler/jeep dealer on the planet should own a couple of these ! usa made . if you need one of these call me 314 456 3056 hank.i have tools here,$150.00 free shipping to lower 48 states. and we will ship anywhere.i have these tools available for sale on ebay..also have new injectors siemens deka #04591851aa $100 bucks for a set of 8 shipped , yes i know video sucks .i am a working man , and dont have much extra time , we are going to post another video soon that will be way better.stay tuned e mail at ..thanks for watching.....

Chrysler 4.7 Spring compressor comparison.
I just changed my valve spring seals to stop an oil burning issue with my Jeep Grand Cherokee Laredo 4.7 HO engine. This is a comparison of the “new tool “and the Miller 8387 tool used on a Jeep 4.7 HO V8. I found that the Miller tool was more difficult to use but it was far stronger and compressed the springs straight down so there was less interference for installing the valve spring keepers. The ‘new tool” unfortunately deformed with each spring compression and had to be straightened in a vice using a big screwdriver before proceeding to the next spring. Hank Cullen told me that the new tool would not deform while being used on my engine and was kind enough to send a free second tool when the first one bent. However, the second tool was no better. Hank also told me that the valve springs for the 4.7 HO are the same as the springs on the regular 4.7 engine. I later learned that the HO springs have a higher spring rate which probably was the reason the tool deformed under normal use. See this link for explanation of the up rated springs on the 4.7 HO. The two “new tools” are now somewhat worn but could still be used on a regular 4.7 or the 3.7. Let me know if you want them for good price. The Miller 8387 is also available for a good price.

Valve seal Replacement
Leaking valve seals cause your engine to smoke when you first start it up, and then it usually runs the rest of the day with no smoke. Usually replacing the valve seals will fix the problem. Here's how to do it. Of course other engines may vary to some degree but the basics are the same.

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