installing pac 1518's have questions
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installing pac 1518's have questions
I have the pac 1518 kit which has the springs, seats, locks, and seals. I got them off of a dyno time only motor with l92 heads. They are going on my 4.8 with 799 heads. I pulled the stock spring and seat/seal. I went to install new seat and seal but the seal is really loose... Like tighter on valve then on the boss it goes over. I tried to put the springs on stock seats but the ID of the 1518 is bigger and spring has a lot of movement on there... What should I be doing?
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If they are a one piece seat and seal then the spring force will hold it down no problem. Mine were two piece so the seals fit pretty tight on the boss.
I would imagine with a one piece as long as it seals well on the valve then the spring will hold the seat/seal down and you should be good to go.
Some others may chime in though...
I would imagine with a one piece as long as it seals well on the valve then the spring will hold the seat/seal down and you should be good to go.
Some others may chime in though...
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I got it figured out now guys thanks for the input. The id of the seals I have are oversize. Although they don't appear to be used. Got new seals. I could use the stock seat but the spring has a lot of play. The id of the 1518 is a bit more then stock
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