Access Panel Thru Firewall to Engine Comp |
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Access Panel Thru Firewall to Engine Comp |
Geo9146 |
Mar 13 2022, 03:00 PM
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#1
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Newbie Group: Members Posts: 13 Joined: 4-March 06 From: Vancouver, BC Member No.: 5,661 |
Does anyone have a template for cutting an access panel thru the firewall to the engine compartment?
Thx George |
Mark Henry |
Mar 13 2022, 04:14 PM
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#2
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Nope.
You have to wing it like everyone else. (IMG:style_emoticons/default/popcorn[1].gif) You want it big enough to pull your fan through the hole. (IMG:style_emoticons/default/sawzall-smiley.gif) Just don't cut into your wiring. (IMG:style_emoticons/default/unsure.gif) I probably have the biggest access hatch in the whole 914world. (IMG:style_emoticons/default/biggrin.gif) (IMG:http://www.914world.com/bbs2/uploads/post-26-1497554426.jpg) (IMG:http://www.914world.com/bbs2/uploads/post-26-1497236248.jpg) |
roblav1 |
Mar 13 2022, 06:44 PM
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#3
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Senior Member Group: Members Posts: 528 Joined: 18-September 12 From: KY Member No.: 14,943 Region Association: MidAtlantic Region |
Many people, including Mark, have a lot of experience here. After welding up a firewall in a previous 914, and seeing how structural it is, I decided not to do that cut on both my conversions. Remove intake, and loosen shroud... and you can get the fan out.
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Steve |
Mar 13 2022, 10:17 PM
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#4
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914 Guru Group: Members Posts: 5,686 Joined: 14-June 03 From: Orange County, CA Member No.: 822 Region Association: Southern California |
I bought the PMS panel and used rivnuts to hold it in place.
https://patrickmotorsports.com/products/bod...8cbbd&_ss=r |
roblav1 |
Mar 14 2022, 07:09 AM
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#5
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Senior Member Group: Members Posts: 528 Joined: 18-September 12 From: KY Member No.: 14,943 Region Association: MidAtlantic Region |
Rivnuts is the way to go! If you go this route.
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GregAmy |
Mar 14 2022, 07:11 AM
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#6
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Advanced Member Group: Members Posts: 2,385 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States |
I'm thinking of doing this on my /4 just so I can use more rivnuts...love those things.
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Mark Henry |
Mar 14 2022, 07:25 AM
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#7
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Many people, including Mark, have a lot of experience here. After welding up a firewall in a previous 914, and seeing how structural it is, I decided not to do that cut on both my conversions. Remove intake, and loosen shroud... and you can get the fan out. On my hatch I made a frame out of 16ga. steel, fully welded and then the panel is held in with 14 rivnuts. The frame is heavier than the 22ga. original metal. Also by using a frame I didn't need to source an oversize hatch panel. BTW fan removal or install about 20 minutes, I've had to do it twice now. (IMG:http://www.914world.com/bbs2/uploads/post-26-1496895404.jpg) |
rgalla9146 |
Mar 14 2022, 07:47 AM
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#8
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Advanced Member Group: Members Posts: 4,624 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None |
Not too convenient if you intend to keep your backpad.....no backpad is big invitation to NHV
But...excellent for access to ignition timing on 6 cyl. cars. Especially if your flywheel is does not have timing marks Attached thumbnail(s) |
Retroracer |
Mar 14 2022, 09:27 AM
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#9
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Senior Member Group: Members Posts: 620 Joined: 7-July 13 From: Bend OR Member No.: 16,100 Region Association: Pacific Northwest |
I've lost the template, but you can get the idea from the pic. The panel has a slight taper to it (not rectangular). I went for a minimal size to maintain integrity, but enough to get my hand through. On a six, this still allows me to:
- strobe light the crank markings for timing check - reach through to tweak timing on distributor - adjust / replace fan belt - turn over the engine easily when checking valve timing Rivnuts or similar highly recoommended. Hoping this helps, - Tony |
brant |
Mar 14 2022, 09:30 AM
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#10
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914 Wizard Group: Members Posts: 11,739 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
aluminum for weight:
Attached image(s) |
troth |
Mar 14 2022, 09:56 AM
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#11
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Member Group: Members Posts: 153 Joined: 17-August 16 From: CT/WA Member No.: 20,305 Region Association: None |
Anybody done this with a carpeted firewall care to share pics? I imagine it could be made to look ok.
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roblav1 |
Mar 14 2022, 11:00 AM
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#12
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Senior Member Group: Members Posts: 528 Joined: 18-September 12 From: KY Member No.: 14,943 Region Association: MidAtlantic Region |
Ha ha! Maybe you guys are convincing me! A rivnutted shroud has a lot of benefit.
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ClayPerrine |
Mar 14 2022, 11:28 AM
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#13
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Life's been good to me so far..... Group: Admin Posts: 15,820 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
This is my opinion, and I seem to be in the minority on here.
Having gone through an engine fire on a 914, I refuse to cut a hole from the engine compartment to the passenger compartment. It is called a "FIREWALL" for a reason. I consider the engineers at Porsche to be smarter than me, and they didn't put a big assed hole in the firewall. They must have felt that the timing can be set without it, and you can remove the fan/alternator with the engine in the car, and not remove the intake. There is even a thread in the classics section on here that tells you exactly how to do it. |
Steve |
Mar 14 2022, 01:38 PM
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#14
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914 Guru Group: Members Posts: 5,686 Joined: 14-June 03 From: Orange County, CA Member No.: 822 Region Association: Southern California |
(IMG:style_emoticons/default/agree.gif)
With my 3.2 stock six, I had no problems replacing the belt or getting to the distributor, but I wasn’t going to pull the engine to replace the alternator, so I installed a panel. |
jim_hoyland |
Mar 14 2022, 07:43 PM
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#15
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Get that VIN ? Group: Members Posts: 9,418 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California |
Didn’t Forrest Haagg make a FG template/Mold for a cover ?
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Mark Henry |
Mar 15 2022, 05:14 AM
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#16
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
This is my opinion, and I seem to be in the minority on here. Having gone through an engine fire on a 914, I refuse to cut a hole from the engine compartment to the passenger compartment. It is called a "FIREWALL" for a reason. I consider the engineers at Porsche to be smarter than me, and they didn't put a big assed hole in the firewall. They must have felt that the timing can be set without it, and you can remove the fan/alternator with the engine in the car, and not remove the intake. There is even a thread in the classics section on here that tells you exactly how to do it. I see your point but VW bay window bus and vanagons, type 3 and 4 all have engine access hatches, those are steel lids with two clamps. Ford, Dodge and GM vans and many others have plastic and insulation engine covers. Hino, Isuzu and Fuso crew cab trucks have a sewn material engine cover that just hangs over a frame. That said I will only use a steel cover with several fasteners. |
73-914 |
Mar 15 2022, 06:24 AM
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#17
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Senior Member Group: Members Posts: 595 Joined: 24-April 10 From: Albany UpstateNY Member No.: 11,651 Region Association: None |
This is my opinion, and I seem to be in the minority on here. Having gone through an engine fire on a 914, I refuse to cut a hole from the engine compartment to the passenger compartment. It is called a "FIREWALL" for a reason. I consider the engineers at Porsche to be smarter than me, and they didn't put a big assed hole in the firewall. They must have felt that the timing can be set without it, and you can remove the fan/alternator with the engine in the car, and not remove the intake. There is even a thread in the classics section on here that tells you exactly how to do it. (IMG:style_emoticons/default/agree.gif) |
Mayne |
Mar 15 2022, 06:37 AM
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#18
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Member Group: Members Posts: 254 Joined: 28-February 17 From: NM Member No.: 20,880 Region Association: None |
Boxsters and Caymans have them from the factory, so there is that. A bit of work to get to, but very handy.
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mepstein |
Mar 15 2022, 07:32 AM
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#19
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914-6 GT in waiting Group: Members Posts: 19,518 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
This is my opinion, and I seem to be in the minority on here. Having gone through an engine fire on a 914, I refuse to cut a hole from the engine compartment to the passenger compartment. It is called a "FIREWALL" for a reason. I consider the engineers at Porsche to be smarter than me, and they didn't put a big assed hole in the firewall. They must have felt that the timing can be set without it, and you can remove the fan/alternator with the engine in the car, and not remove the intake. There is even a thread in the classics section on here that tells you exactly how to do it. Porsche also designed the 914 as a no frills intro sports car. Porsche made many production upgrades on all their models. A well done hatch just seems to be a positive. |
Shivers |
Mar 15 2022, 07:58 AM
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#20
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Senior Member Group: Members Posts: 2,674 Joined: 19-October 20 From: La Quinta, CA Member No.: 24,781 Region Association: Southern California |
This is my opinion, and I seem to be in the minority on here. Having gone through an engine fire on a 914, I refuse to cut a hole from the engine compartment to the passenger compartment. It is called a "FIREWALL" for a reason. I consider the engineers at Porsche to be smarter than me, and they didn't put a big assed hole in the firewall. They must have felt that the timing can be set without it, and you can remove the fan/alternator with the engine in the car, and not remove the intake. There is even a thread in the classics section on here that tells you exactly how to do it. Good point. So a proper gasket and a good overlap on the hatch is in order, if I proceed. https://www.grainger.com/product/56GV17?ef_...mp;gclsrc=aw.ds |
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