Author Topic: jayb adapter cover  (Read 5547 times)

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gregaba

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jayb adapter cover
« on: January 17, 2019, 06:34:16 PM »
Hi
I was looking at the Hot Rod network website today and they had an story about Holleys new coil near plug ignition system.
They showed it with a BB Chrysler. In the picture the Chrysler had a clear valley cover where you could see the lifters pushrods etc.
Would this be feasible on a street car or would the heat warp it?
Just wondered.
Greg

Dumpling

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Re: jayb adapter cover
« Reply #1 on: January 17, 2019, 07:21:31 PM »
I have a PSE timing cover with a clear cover where Jay's has steel.
What's the recommended clear material...get out the jigsaw and drill

gregaba

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Re: jayb adapter cover
« Reply #2 on: January 17, 2019, 07:24:51 PM »
Yeah
I think it would be neat to watch my push rods flex at high RPM if it didn't give me a heart attack.
Greg

jayb

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Re: jayb adapter cover
« Reply #3 on: January 17, 2019, 08:22:41 PM »
I've thought about doing that, but never gotten around to it.  The material you want to use is polycarbonate, comes in the trade names Lexan or Macrolon.  This material will stay clear and hold up to engine temperatures, its what I make my clear valve covers out of.  I'd use some thick stuff, probably 3/8", to make sure it is stiff enough to compress the O-ring and seal properly.
Jay Brown
- 1969 Mach 1, Drag Week 2005 Winner NA/BB, 511" FE (10.60s @ 129); Drag Week 2007 Runner-Up PA/BB, 490" Supercharged FE (9.35 @ 151)
- 1964 Ford Galaxie, Drag Week 2009 Winner Modified NA (9.50s @ 143), 585" SOHC
- 1969 Shelby Clone, Drag Week 2015 Winner Modified NA (Average 8.98 @ 149), 585" SOHC

   

gregaba

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Re: jayb adapter cover
« Reply #4 on: January 17, 2019, 10:13:37 PM »
Thanks Jay
I just might do that.
I all ways wondered what the hidden valve train looked like at high RPM.
It would be fun to watch with a strobe light.
Greg

gregaba

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Re: jayb adapter cover
« Reply #5 on: January 22, 2019, 12:27:30 PM »
Well so much for that ideal.
The lexan is fairly cheap cost $110.00 but then they want $150.00 an hour if they can hand cut it $320.00 an hour if they have to use their water jet machine and the bolt holes are extra.
Beyond what I want to spend on a daily driver.
Greg

wowens

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Re: jayb adapter cover
« Reply #6 on: January 22, 2019, 01:14:13 PM »
Cut it yourself. Use a thin fine tooth saw blade and go slow. Edges will sand fairly easy with a belt sander and drills easily with a bit that is not too sharp. Extremely sharp bits will dig in and damage material.
Woody

Joe-JDC

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Re: jayb adapter cover
« Reply #7 on: January 22, 2019, 05:09:01 PM »
When you get it cut, sand edges with 2000 grit sandpaper, and then take a small butane/benzene torch and hold the flame just close enough to heat the edges.  The lexan/polycarbonate will clear up and look professional.  Too close and it will melt.    Joe-JDC
Joe-JDC '70GT-500

gregaba

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Re: jayb adapter cover
« Reply #8 on: January 22, 2019, 07:31:51 PM »
Thanks for the tips.
I have never worked with lexan before but for the price I think I will give it a try.
I was all so thinking of doing jaybs timing cover too.
I will buy extra lexan because I know I am going to mess up the first few tries.
Greg

wowens

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Re: jayb adapter cover
« Reply #9 on: January 23, 2019, 07:07:03 AM »
When you get it cut, sand edges with 2000 grit sandpaper, and then take a small butane/benzene torch and hold the flame just close enough to heat the edges.  The lexan/polycarbonate will clear up and look professional.  Too close and it will melt.    Joe-JDC
Good tip Joe, never knew about that.
Woody

gregaba

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Re: jayb adapter cover
« Reply #10 on: January 23, 2019, 11:50:19 AM »
I went online and found a place called eplastics.com that offers cut to size lexan.
I ordered 2- 3/8 inch sheets for $49.00 and 3 drill bits made for lexan and 2 saw blades for lexan.
The total to me with shipping was $89.78 so it was reasonable.
Now when it comes in I will see if I can screw it up or not.
I will post some pictures when I finish.
The only thing I could not find was a counter sink for the holes.
Greg

fekbmax

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Re: jayb adapter cover
« Reply #11 on: January 23, 2019, 12:08:27 PM »
Use a cone shaped die grinder abrasive stone instead of a counter sink bit on plastic. Slow speed in a drill and it will give you alot better control and a nice counter sink.
The tip from Joe is spot on, it will give you a great finished look.
Make sure to share your finished piece.
Good luck.
Keith.  KB MAX Racing.

gregaba

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Re: jayb adapter cover
« Reply #12 on: January 23, 2019, 12:26:57 PM »
Good ideal.
I have never worked with lexan before.
 We all ways had it cut at the glass shop for our race cars so all I did was install it.
I have a die grinder with a lot of cone shaped bits so that is not a problem even though I would not have thought to use them.
Greg

Falcon67

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Re: jayb adapter cover
« Reply #13 on: January 23, 2019, 04:07:15 PM »
LOL, that's cheaper than 3/8 aluminum.  Might have been an option for my valley cover on the dragster.

67428GT500

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Re: jayb adapter cover
« Reply #14 on: January 23, 2019, 06:14:15 PM »
The key is low speed and not heating it up to the point it starts to melt. Should be interesting!
                                                           -Keith