Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

2 Pages V  1 2 >  
Reply to this topicStart new topic
> firewall cutouts for 6, I would like to see what you used for the cover
MJHanna
post Dec 11 2014, 08:47 PM
Post #1


Does this 911 make my butt look big?
***

Group: Members
Posts: 806
Joined: 23-January 03
From: Lowry Crossing, Texas
Member No.: 185



looking for ideas. Mine is cut but it not large enough to be useful. So I'm going to enlarge it and would like to see others solutions.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SirAndy
post Dec 11 2014, 08:49 PM
Post #2


Resident German
*************************

Group: Admin
Posts: 42,199
Joined: 21-January 03
From: Oakland, Kalifornia
Member No.: 179
Region Association: Northern California



I know it's kinda tight in there, but i really don't think it's needed at all.

I replaced the alternator, engine harness and belt on my 3.6L and it wasn't that hard to do.
(IMG:style_emoticons/default/shades.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
GeorgeRud
post Dec 11 2014, 10:12 PM
Post #3


Advanced Member
****

Group: Members
Posts: 3,725
Joined: 27-July 05
From: Chicagoland
Member No.: 4,482
Region Association: Upper MidWest



I think that perhaps just getting a larger cut piece of the firewall from another parts car would allow you to overlap a cutout and fasten it with Dzus fasteners. The thickness of the overlapping areas should be inconsequential.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Krieger
post Dec 11 2014, 10:26 PM
Post #4


Advanced Member
****

Group: Members
Posts: 4,800
Joined: 24-May 04
From: Santa Rosa CA
Member No.: 2,104
Region Association: None



I made a cardboard template to cover the opening I made. About 3/4" bigger all around than the opening in firewall. I traced it onto a sheet of aluminum and cut out with my jig saw. I used a rubber mallet to shape it on the fire wall. I tack welded 8 small nuts on the engine compartment side to make for easy removal/install.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
Krieger
post Dec 11 2014, 10:31 PM
Post #5


Advanced Member
****

Group: Members
Posts: 4,800
Joined: 24-May 04
From: Santa Rosa CA
Member No.: 2,104
Region Association: None



From the F-914 build in my signature.


Attached image(s)
Attached Image
User is online!Profile CardPM
Go to the top of the page
+Quote Post
mepstein
post Dec 12 2014, 06:12 AM
Post #6


914-6 GT in waiting
***************

Group: Members
Posts: 19,846
Joined: 19-September 09
From: Landenberg, PA/Wilmington, DE
Member No.: 10,825
Region Association: MidAtlantic Region



i have a large piece of firewall. pm me if interested. include your email so i can send pics. mark
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
EdwardBlume
post Dec 12 2014, 06:40 AM
Post #7


914 Wizard
**********

Group: Members
Posts: 12,338
Joined: 2-January 03
From: SLO
Member No.: 81
Region Association: Central California



I installed a zipper and sprayed it with rust. (IMG:style_emoticons/default/lol-2.gif)

The last race car had a similar opening like Krieger's. Sheet of aluminum covering it with screws holding it in. Never needed to use it though.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
t collins
post Dec 12 2014, 07:10 AM
Post #8


Advanced Member
****

Group: Members
Posts: 3,270
Joined: 21-March 06
From: Virginia
Member No.: 5,754
Region Association: None



After cutting the opening, I spot welded an 1/8" thick reinforcing ring and then drilled/tapped for the cover screws
Attached Image
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cairo94507
post Dec 12 2014, 08:08 AM
Post #9


Michael
**********

Group: Members
Posts: 10,300
Joined: 1-November 08
From: Auburn, CA
Member No.: 9,712
Region Association: Northern California



Scotty and I were just discussing this for my Six. I really do not want to cut a hole in the firewall but I do acknowledge that access would make life easier if I need to replace a belt or alternator. What is the general consensus here? I am leaning towards no hole, but could be swayed..... Although Andy's post gives me hope this can be avoided. (IMG:style_emoticons/default/w00t.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Dec 12 2014, 08:13 AM
Post #10


I am Tangerine Racing
*****

Group: Members
Posts: 7,981
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None



No hole.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
naro914
post Dec 12 2014, 08:15 AM
Post #11


Losing my mind...
****

Group: Members
Posts: 2,476
Joined: 26-May 06
From: Charlotte, NC
Member No.: 6,073
Region Association: South East States



Not easy to see, but we just did a very clean/straight cut out, made an aluminum 'door' just a bit bigger, and used hinges on the bottom and 1 dzeus fastener on top. Very simple. this way there are no screws or nuts to deal with that might get dropped or lost when you open it up. Painted it when I painted the interior.

Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mepstein
post Dec 12 2014, 08:37 AM
Post #12


914-6 GT in waiting
***************

Group: Members
Posts: 19,846
Joined: 19-September 09
From: Landenberg, PA/Wilmington, DE
Member No.: 10,825
Region Association: MidAtlantic Region



QUOTE(Cairo94507 @ Dec 12 2014, 09:08 AM) *

Scotty and I were just discussing this for my Six. I really do not want to cut a hole in the firewall but I do acknowledge that access would make life easier if I need to replace a belt or alternator. What is the general consensus here? I am leaning towards no hole, but could be swayed..... Although Andy's post gives me hope this can be avoided. (IMG:style_emoticons/default/w00t.gif)

Not in an orig 6. Bend a wrench to fit around the fan and keep in in the car. There was a thread on this about a month ago. Actually, have scatty make 2 since I want one. (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
pcar916
post Dec 12 2014, 09:02 AM
Post #13


Is that a Lola?
***

Group: Members
Posts: 1,523
Joined: 2-June 05
From: Little Rock, AR
Member No.: 4,188
Region Association: None



I vote for easy access in the dark on a lonely road in the mountains, or on the track between runs. What's likely to happen? Perhaps a broken or compromised fan belt. Mine gets inspected and replaced fairly often so it's never happened to me, but it did when I had the PO installed 2.7L. Not an enjoyable operation. My thinking on the size?

I choose not to give myself cramps trying to do two-handed operations through a small hole.

This access hole lets me do anything I need to do, including getting the spanner onto those 3.6L pulley holes and fussing with the shims on the fan pulley. The metal is thin enough to snake out from behind the cage-crossmember, thick enough to still be a firewall, and with the Dzus fittings, is easy to remove/install. The only thing I have to do is remove the passenger seat, a 5-minute thing. When on the road, I carry a huge plastic bag to cover it if it's raining.

Attached Image

Attached Image

Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mark Henry
post Dec 12 2014, 09:16 AM
Post #14


that's what I do!
***************

Group: Members
Posts: 20,065
Joined: 27-December 02
From: Port Hope, Ontario
Member No.: 26
Region Association: Canada



For those that don't put a hatch in how do you time the engine?
Is FI a pre set and forget?
And Andy how did you get the alt out? Do you have a 2 piece shroud?

My engine is a twin plug/MSD with webers I have no idea how to time it easy without a hatch (IMG:style_emoticons/default/confused24.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
fixer34
post Dec 12 2014, 09:50 AM
Post #15


Senior Member
***

Group: Members
Posts: 1,263
Joined: 16-September 14
From: Chicago area
Member No.: 17,908
Region Association: Upper MidWest



My one and only experience with replacing a fan belt on a /6 with the engine in the car was at night, on a Texas freeway, 1000 miles from home. I had only owned the car less than a year. Luckily, it had the full toolkit and a spare belt. After waiting a while for the engine to cool down, I was able to replace the belt with just the factory supplied tools. Not easy, but doable. I would think it would more hassle removing the seats and back pad to get to an access panel than just doing it the 'right' way. And how often do you need to change a belt anyway?

Regarding the timing, on a factory six, the timing marks are on the flywheel and there is an access hole in the case. Very easy to put a timing light to; just a little unnerving adjusting the distributor to full advance at 6000 rpm.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
pcar916
post Dec 12 2014, 10:22 AM
Post #16


Is that a Lola?
***

Group: Members
Posts: 1,523
Joined: 2-June 05
From: Little Rock, AR
Member No.: 4,188
Region Association: None



On my 2.7, also MSD, I timed on the flywheel with a degree-dial type light. Ahead of Andy's answer, the DME is 100% computer controlled and the distributors are fixed. The 3.6 has a two-piece shroud which makes the alternator job easier.

Interestingly, I discovered when Andy told me there was a factory recall on 993 engine wiring-harnesses, my large access hole allowed me to tilt the fan forward without disturbing the fanbelt pulley. Saved a fair amount of time, but effects only 993 and perhaps 964-engine 914's.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SLITS
post Dec 12 2014, 10:30 AM
Post #17


"This Utah shit is HARSH!"
**********

Group: Benefactors
Posts: 13,602
Joined: 22-February 04
From: SoCal Mountains ...
Member No.: 1,696
Region Association: None



QUOTE(fixer34 @ Dec 12 2014, 07:50 AM) *

My one and only experience with replacing a fan belt on a /6 with the engine in the car was at night, on a Texas freeway, 1000 miles from home. I had only owned the car less than a year. Luckily, it had the full toolkit and a spare belt. After waiting a while for the engine to cool down, I was able to replace the belt with just the factory supplied tools. Not easy, but doable. I would think it would more hassle removing the seats and back pad to get to an access panel than just doing it the 'right' way. And how often do you need to change a belt anyway?

Regarding the timing, on a factory six, the timing marks are on the flywheel and there is an access hole in the case. Very easy to put a timing light to; just a little unnerving adjusting the distributor to full advance at 6000 rpm.


I have the hatch and I have the hole in the tin for timing. It's hell to be standing, shooting the light at the hole and marks on the flywheel and then trying to turn the dizzy.

Also, when fitting the early flywheel to a 2.7L at least, the marks on the flywheel are way off.

I use the hatch ... pull the seats and backpad ... easy peasy ... remembering Moab 2014 .... (IMG:style_emoticons/default/sad.gif)

I will be adding the Electromotive HPV-1 system next ... worst part is getting the sensor lined up with the 11th tooth ... after that timing is not a problem.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
pcar916
post Dec 12 2014, 10:33 AM
Post #18


Is that a Lola?
***

Group: Members
Posts: 1,523
Joined: 2-June 05
From: Little Rock, AR
Member No.: 4,188
Region Association: None



QUOTE(fixer34 @ Dec 12 2014, 09:50 AM) *

I would think it would more hassle removing the seats and back pad to get to an access panel than just doing it the 'right' way.


(IMG:style_emoticons/default/agree.gif) and would have the same opinion if my firewall wasn't exposed.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
brant
post Dec 12 2014, 10:47 AM
Post #19


914 Wizard
**********

Group: Members
Posts: 11,945
Joined: 30-December 02
From: Colorado
Member No.: 47
Region Association: Rocky Mountains



I use mine all of the time...
in fact I used it again last weekend, and practically open it every single post-race

but its a race car
I wouldn't do it on a street car


Attached image(s)
Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mark Henry
post Dec 12 2014, 10:52 AM
Post #20


that's what I do!
***************

Group: Members
Posts: 20,065
Joined: 27-December 02
From: Port Hope, Ontario
Member No.: 26
Region Association: Canada



I just pulled my seats and pad, I didn't think it was a big deal. I wouldn't pull them for just a belt.
Still thinking on this, high compression twinplug, I don't want to be fuching around with the timing too much the wrong way. (IMG:style_emoticons/default/unsure.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

2 Pages V  1 2 >
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 24th April 2025 - 11:27 PM