Let the hood mods begin...
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From: Las Vegas
Re: Let the hood mods begin...
I had to cut access panels so I could bond reinforcements behind where the steel/aluminum met at the front edge. Lots of time and a big pain to do. Here's the latest pics..............
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From: North Plains, OR
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From: Las Vegas
Re: Let the hood mods begin...
Originally Posted by Bill F
Anything new on the hood mod?
I haven't had time to do much other than buy the fiberglassing supplies. Between going out of town for work, doing a custom paint job on my Polaris Razr, constant raining(roof leaking at my house) and the crank pulley on the 6 now deciding to nearly come apart.........I've had very little free time. I WILL get back on it and start the bodywork hopefully this week though. Here's some pics of my newly painted Razr to stare at for the time being.
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and my poor crank pulley bolts............
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From: VA
Re: Let the hood mods begin...
MOPAR - or - BUST for real.
I was Looking again and seeing for the first time........
I have run across the stud failures ---bolts damnnit-- That is stretch failure, not torque thou related. THe bolts had an initial torque of X.X which is all fine, but if it is in a different rate of expansion material, the bolt is internally stretched till it shears in two.
At issue I had several harlan sharp roller rockers experience push rod bolt failures. The heavy bolt was screwed into aluminum rocker with a jab nut. THe expansion of the aluminum stretched the 3/8" bolt causing it and others to split. To limit the stretch the bolts tension must be limited to minimize the prestretch. Mixing different metals often has stress - warpage problems due to disimilar rates of expansion and contraction.
I would suggest loosening all the bolts, adding some Moly lube and retightning them to No more than minimum ( low range ) on the bolts capacity.
Just a bit from my own experiences, car over heated once and pow every thing started coming loose like on twilight zone........stretched out.
W o o d y
I was Looking again and seeing for the first time........
I have run across the stud failures ---bolts damnnit-- That is stretch failure, not torque thou related. THe bolts had an initial torque of X.X which is all fine, but if it is in a different rate of expansion material, the bolt is internally stretched till it shears in two.
At issue I had several harlan sharp roller rockers experience push rod bolt failures. The heavy bolt was screwed into aluminum rocker with a jab nut. THe expansion of the aluminum stretched the 3/8" bolt causing it and others to split. To limit the stretch the bolts tension must be limited to minimize the prestretch. Mixing different metals often has stress - warpage problems due to disimilar rates of expansion and contraction.
I would suggest loosening all the bolts, adding some Moly lube and retightning them to No more than minimum ( low range ) on the bolts capacity.
Just a bit from my own experiences, car over heated once and pow every thing started coming loose like on twilight zone........stretched out.
W o o d y
Last edited by waldig; 02-11-2009 at 05:59 PM.
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Re: Let the hood mods begin...
Originally Posted by tom2112
Hey Moparbust: is that big blue thing something off of Optimus Prime's helmet or what?!?
Close, they go on my side by side...............which used to be red.
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Re: Let the hood mods begin...
Originally Posted by waldig
MOPAR - or - BUST for real.
I was Looking again and seeing for the first time........
I have run across the stud failures ---bolts damnnit-- That is stretch failure, not torque thou related. THe bolts had an initial torque of X.X which is all fine, but if it is in a different rate of expansion material, the bolt is internally stretched till it shears in two.
At issue I had several harlan sharp roller rockers experience push rod bolt failures. The heavy bolt was screwed into aluminum rocker with a jab nut. THe expansion of the aluminum stretched the 3/8" bolt causing it and others to split. To limit the stretch the bolts tension must be limited to minimize the prestretch. Mixing different metals often has stress - warpage problems due to disimilar rates of expansion and contraction.
I would suggest loosening all the bolts, adding some Moly lube and retightning them to No more than minimum ( low range ) on the bolts capacity.
Just a bit from my own experiences, car over heated once and pow every thing started coming loose like on twilight zone........stretched out.
W o o d y
I was Looking again and seeing for the first time........
I have run across the stud failures ---bolts damnnit-- That is stretch failure, not torque thou related. THe bolts had an initial torque of X.X which is all fine, but if it is in a different rate of expansion material, the bolt is internally stretched till it shears in two.
At issue I had several harlan sharp roller rockers experience push rod bolt failures. The heavy bolt was screwed into aluminum rocker with a jab nut. THe expansion of the aluminum stretched the 3/8" bolt causing it and others to split. To limit the stretch the bolts tension must be limited to minimize the prestretch. Mixing different metals often has stress - warpage problems due to disimilar rates of expansion and contraction.
I would suggest loosening all the bolts, adding some Moly lube and retightning them to No more than minimum ( low range ) on the bolts capacity.
Just a bit from my own experiences, car over heated once and pow every thing started coming loose like on twilight zone........stretched out.
W o o d y
Very good food for thought. I'm having the pulley rebuilt by the maker and asked that the bolts be red lock tited so I won't ever have to worry about retorqing again. Hopefully there will be no more issues after that.
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Re: Let the hood mods begin...
It was finally a nice day today so I got a chance to put the first coat of fiberglass on the hood!!! I'll try to grind it down and throw the final glass coat on today or tomorrow and then I just have to do the finish putty work to make everything smooth and straight. Then I can go back to finishing up the underside which still needs a bit of work to get it up to my standards.
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Here's a shot of the little cowl induction it will provide..........I bonded a support in the middle so it doesn't flop around at 100+mph.
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Here's a shot of the little cowl induction it will provide..........I bonded a support in the middle so it doesn't flop around at 100+mph.
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From: North Plains, OR
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From: Las Vegas
Re: Let the hood mods begin...
I made some good progress on the hood this week. I was slow at work so I brought it in and finished welding up the underside and threw the final coat of fiberglass(which isn't all sanded yet) on the hood. I also just got the vents in today and threw them on for a quick pic.
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Re: Let the hood mods begin...
Originally Posted by RickZ
Looks really nice, I like the cowl induction. The best view of any good hood is the one from the driver's seat 
https://www.crossfireforum.org/galle...hp?photo=25800
Last edited by +fireamx; 02-27-2009 at 09:18 PM.
