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| problem with coil binding https://www.slantsix.org/forum/viewtopic.php?t=11816 |
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| Author: | CreamedPossum [ Sun Feb 20, 2005 11:20 am ] |
| Post subject: | problem with coil binding |
Been putting this long rod /6 together, and i've bolten on the rocker arms, and noticed that it opened all the valves a little, when they should be closed, and when i turn the crank and a valve goes to open, the coil gets pressed to much and binds up. the only think i can think is this used to be a solid lifter setup. I put in a new hydralic cam (stock replacement from clevite), and new hydralic lifters from clevite also. I planned on reusing the old pushrods and rocker setup. I never measured the pushrods, but i'm guess that a solid lifter cam uses different pushrods than a hydralic one. Anyone know for sure? Nick |
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| Author: | SlantSixDan [ Sun Feb 20, 2005 11:38 am ] |
| Post subject: | |
Whoah, hold it! If I understand you correctly, you're trying to mix and match parts from the solid and hydraulic lifter setups. This won't work. If you want to run hydraulic lifters, you need the whole setup: Camshaft, pushrods, rocker arms, rocker shafts, lifters. Also, you need to modify either the cam bearing or the cam journal itself to supply high-volume oil to the top end. The hydraulic lifter slant-6 uses a reverse-feed setup (oil supplied via rearmost cam bearing to rocker shaft, from there through rocker arms downward through pushrods to top-feed lifters). It may be that you will need custom (shorter) pushrods if you've shaved a significant amount off the head and/or block, but it's also possible that once you put all the right pieces in there, the geometry problem will be solved. Stock hydraulic cam is kinda weak/wimpy on specs... |
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| Author: | CreamedPossum [ Sun Feb 20, 2005 1:09 pm ] |
| Post subject: | |
this engine hasn't been shaved on either the block or head side. sounds like i might be better off just going ahead and getting a solid lift cam, and seeing if i can return the hydralic one. anyone know what would be a good choice. this is going into a '65 valiant. it's going to be the long rod setup with 9.5:1, head is stock, and going to have 2bbl carb, exhaust will be 2 1/4" with flowmaster. I'm really trying to build something with a little bit of power, but i mainly am looking for gas mileage. Anyone know which cam i should get? Thanks. Nick |
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| Author: | Greg Ondayko [ Sun Feb 20, 2005 3:15 pm ] |
| Post subject: | |
Yeah, the hydraulic setup requires all different valve train. Cam - Lifters - Pushrods - Rockers - Probably visit the Junkyard and get the pushrods and rockers. don't mix and match. It will give you trouble. Greg |
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