 V8 Engine Mount bolts...how did you drill out?, Question for V8 guys.... |
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| nine14cats |
 Mar 12 2006, 11:51 PM
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#1
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Bill Pickering -- 914-6 GT aka....Leeloo  Group: Members Posts: 2,618 Joined: 10-February 03 From: Campbell, CA Member No.: 287 Region Association: None  |
I'm continuing my work on JLO (V8 SBC 914). The engine crossbar mounting bolts that attach to the frame of the car are about a 1/4" larger than stock 914 bolts. I'm using the RH hardware.
My question....did you guys dry fit the engine up where it connects, mark and then drill? Or are the tolerances of the RH parts exactly center to the Porsche stock cross bar and I just center the engine mount tabs in the drill press and open them up? Thanks in advance for the help. Bill P. |
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| skline |
Mar 13 2006, 12:23 AM
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#2
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Born to Drive Group: Members Posts: 7,910 Joined: 26-December 02 From: Costa Mesa, CA Member No.: 17 Region Association: Southern California |
I didnt have to drill anything? Mine just bolted right on in. I used grade 8 bolts from the hardware store to bolt it in. Has not fallen out yet. (IMG:http://www.914world.com/bbs2/html/emoticons/unsure.gif)
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| Dr. Roger |
Mar 13 2006, 01:09 AM
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#3
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
bill,
are you talking about the hole in the center of the mount on the left is too small? (IMG:http://www.914world.com/bbs2/uploads/post-2-1123080878.jpg) |
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| Andyrew |
Mar 13 2006, 03:02 AM
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#4
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California 
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(IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif) I didnt drill anything either?
Call Rennegade? |
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| nine14cats |
Mar 13 2006, 08:33 AM
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#5
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Bill Pickering -- 914-6 GT aka....Leeloo Group: Members Posts: 2,618 Joined: 10-February 03 From: Campbell, CA Member No.: 287 Region Association: None |
Hi Roger,
Yes, in your picture the oblong slit in the metal needs to opened up for the RH bolts to fit. RH recommends larger bolts than stock as they have seen many failures with the stock bolt sizes being used with their kits. They include these larger bolts in their kits. I have trouble believing that the bolt would fail before the tab mount, but that's RH story. I already called RH and they said they just hog it out with a hand drill. I'll probably dry fit, mark and maybe put them on my drill press, but I didn't know if you guys had done this as well. Thanks, Bill P. |
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| Dr. Roger |
Mar 13 2006, 05:19 PM
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#6
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
yes bill,
now that i think about it i believe i did have to go up one size on that hole and i did use RH's supplied bolts. be sure to push the bolts trugh from below so the extra threads are above. won't get hit on speed bumps... |
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| nine14cats |
Mar 13 2006, 05:29 PM
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#7
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Bill Pickering -- 914-6 GT aka....Leeloo Group: Members Posts: 2,618 Joined: 10-February 03 From: Campbell, CA Member No.: 287 Region Association: None |
Roger,
Did you hog it out as RH told me on the phone? Thanks, Bill P. |
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| Brad Roberts |
Mar 13 2006, 05:49 PM
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#8
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Bill,
I had a billet piece made that sat down inside the "ear" to distribute the load of the V8 over the entire ear instead "just" that tiny area that was designed to support a 4cyl. You can use the billet style round tranny mounts with a larger hole. B |
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| nine14cats |
Mar 13 2006, 05:55 PM
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#9
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Bill Pickering -- 914-6 GT aka....Leeloo Group: Members Posts: 2,618 Joined: 10-February 03 From: Campbell, CA Member No.: 287 Region Association: None |
B,
Thanks for the tip! That sounds like a great idea. Did you use the two existing bolts for the billet piece or did you put and extra two in for 4 total to help distribute the torsional forces of the added torque? I wonder who can machine them for me? I think my dad's lathe is fubar. Bill P. |
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