Thread: Cam buttons and timing covers

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with all the good things Im rearing about roller cams. Tell me about cam buttons, the spacing the cam has to have,and a good timing cover to use.Ill use full kit from comp cams, cam, springs, lifters,chain,push rods,ect,the kit comes with the button also,cloyes has a nice die cast cover for the 454-- ill have to call them and see if it works with the cam set up,

you will have fun with the cast cover. setting the end play with them. if any like the last two die cast covers i will not do other with out adding $120 to the bill to make them covers work .there to shallow and i had two spot face the cover on the mill were the buttton would need some end play . and cut the button down in the lathe . no big deal just eats up time had that cover off 12 times EZ to set the end play

Pat, where do you set the play, around 0.008" to 0.010" ?

less then your posted numbers . you do not need much end play with roller button and roller thrust washer . (bronze washer) i like if going on the street and a solid button can wear in some. but I think the solid button and bronze washer can take can take more of a back and forth. EZ to fit the solid button with not many tools .i like just a stock tin front cover .i set them with not much end play . there is some oiling things i do as well . and some other things that i do not care to talk about have to keep some thing s to my self . JERRY may chime in to get away from all this stuff is to use the mark 6 cam. the cam is cut for a plate that will bolt to all the gm mark 4 blocks some of the early 396/427 and the tall decks may not have the holes in the front drilled and tap but not hard to drill and tap i done it . you end up with a mark 6 cam . cam plate. chain set. and no buttons

So this " button" is between the cam gear and and chain cover? it bolts on ? also read that the sheet metal covers can be pushed out by the cam? thats why I looked into the cast cover.

funny that GM copied this Mk 6 deal from 50 year old ford motor---

comp cam has a three part cover part#212 269.00, so I looked around and tennesse speed/ street proformance has same cover same # only 69.90 ? am I missing somthing? the picture is from the tennessee site.

Tennesse probably miss priced that part

This may be the one that stinky referred to in his first post....
http://www.summitracing.com/parts/CLO-9-231/

Originally Posted by stinkydidit

So this " button" is between the cam gear and and chain cover? it bolts on ? also read that the sheet metal covers can be pushed out by the cam? thats why I looked into the cast cover.

thats what the stop on the water pump is for or a shim if a short water pump

Originally Posted by jerry clayton

funny that GM copied this Mk 6 deal from 50 year old ford motor---

so

Yes, techinspector that is the first one I looked at. I think this company has been around awile. I looked at the comp cams because pat said the cast cover may need some milling to get it to work. I think Ill call them to see if it will work with the comp cam,that would save some money.

I think evey time a read something about roller cams I add another part to the list so tell me about wear plates for the front of the block. Do I have to mill the back of the cam spocket? Iv seen something called a torrington bearing that would go between the cam and block , is this better?

i used them every way you can think of . for street the solid bronze thrust washer is fine you can buy a timming set this way .you do not need to cut the block for a ware washer less the block is worn in here . i also have used a plane upper top gear with no thrust washers as well all will work .i think i posted about this ? yep #4 post