 /6 Conversion Bulkhead Access Cover |
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| earossi |
 Aug 14 2017, 07:22 PM
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#1
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Member  Group: Members Posts: 210 Joined: 8-December 11 From: Chicago, Il Member No.: 13,878 Region Association: Upper MidWest  |
Hi all. We've got a /6 conversion that we completed last year. There is no access to the "front" of the engine for things such as alternator removal, fan, or fan belt replacement. I know that others have fabricated removable cover plates to cover an access hole in the engine compartment bulkhead.
Can someone point me to posts for that modification, so that I don't need to reinvent the wheel. Better, still, would be to find someone who has a fabricated cover plate that I could use on my car. |
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| Larmo63 |
Aug 14 2017, 07:30 PM
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#2
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Advanced Member Group: Members Posts: 4,264 Joined: 3-March 14 From: San Clemente, Ca Member No.: 17,068 Region Association: Southern California |
I drew a line, cut it out and used a firewall cut out from another car that I used for the hatch which is about an inch bigger all around.
Easy peasy. It took me about an hour to finish. I did get some rubber beading that seals the engine side of the surround. Some others will pipe in here with pictures, I couldn't find a good one. |
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| mb911 |
Aug 14 2017, 07:33 PM
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#3
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914 Guru Group: Members Posts: 6,850 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest 
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QUOTE(Larmo63 @ Aug 14 2017, 05:30 PM)  I drew a line, cut it out and used a firewall cut out from another car that I used for the hatch which is about an inch bigger all around. Easy peasy. It took me about an hour to finish. I did get some rubber beading that seals the engine side of the surround. Some others will pipe in here with pictures, I couldn't find a good one. I plan to do the same thing. |
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| mepstein |
Aug 14 2017, 07:55 PM
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#4
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914-6 GT in waiting Group: Members Posts: 19,271 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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QUOTE(mb911 @ Aug 14 2017, 09:33 PM) QUOTE(Larmo63 @ Aug 14 2017, 05:30 PM) I drew a line, cut it out and used a firewall cut out from another car that I used for the hatch which is about an inch bigger all around. Easy peasy. It took me about an hour to finish. I did get some rubber beading that seals the engine side of the surround. Some others will pipe in here with pictures, I couldn't find a good one. I plan to do the same thing. Ben - I have a bulkhead piece if you need one. |
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| rgalla9146 |
Aug 15 2017, 08:27 AM
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#5
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Advanced Member Group: Members Posts: 4,552 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None
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Easy.
4, 1/4 - 20 screws, square nuts welded to engine side. Fits like a glove. Attached image(s)   
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| mepstein |
Aug 15 2017, 08:35 AM
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#6
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914-6 GT in waiting Group: Members Posts: 19,271 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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QUOTE(rgalla9146 @ Aug 15 2017, 10:27 AM) Easy. 4, 1/4 - 20 screws, square nuts welded to engine side. Fits like a glove. I like it. Looks very neat. Is it a part of engine shelf or a formed piece of steel? |
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| mb911 |
Aug 15 2017, 08:58 AM
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#7
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914 Guru Group: Members Posts: 6,850 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest
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QUOTE(mepstein @ Aug 15 2017, 06:35 AM) QUOTE(rgalla9146 @ Aug 15 2017, 10:27 AM) Easy. 4, 1/4 - 20 screws, square nuts welded to engine side. Fits like a glove. I like it. Looks very neat. Is it a part of engine shelf or a formed piece of steel? Definitely going to do this .. Makes it so easy to do things. |
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| rgalla9146 |
Aug 15 2017, 09:43 AM
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#8
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Advanced Member Group: Members Posts: 4,552 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None
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QUOTE(mepstein @ Aug 15 2017, 10:35 AM) QUOTE(rgalla9146 @ Aug 15 2017, 10:27 AM) Easy. 4, 1/4 - 20 screws, square nuts welded to engine side. Fits like a glove. I like it. Looks very neat. Is it a part of engine shelf or a formed piece of steel? Hey Mark....sorry about that. It's a piece cut from a rusted out car. The hole measures 7 1/2" x 10" The piece is 9" x 12' To use anything but an original piece is a waste of effort...unless you're installing a very large V8 or whatever. |
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| GeorgeRud |
Aug 15 2017, 10:13 AM
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#9
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Advanced Member Group: Members Posts: 3,725 Joined: 27-July 05 From: Chicagoland Member No.: 4,482 Region Association: Upper MidWest |
Getting a piece from a doner car would definitely be the easiest way to go. Components that are easily accessible in a 911 are well hidden in a 914-6. Ask anyone whose changed out a fan belt or alternator with the engine in the car. Makes removing the power train, doing all the service needed, and reinstalling seem like a reasonable choice.
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| drem914 |
Aug 15 2017, 10:20 AM
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#10
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Senior Member Group: Members Posts: 1,030 Joined: 16-May 08 From: Trabuco Canyon, CA Member No.: 9,062 Region Association: Southern California
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QUOTE(earossi @ Aug 14 2017, 06:22 PM) Hi all. We've got a /6 conversion that we completed last year. There is no access to the "front" of the engine for things such as alternator removal, fan, or fan belt replacement. I know that others have fabricated removable cover plates to cover an access hole in the engine compartment bulkhead. Can someone point me to posts for that modification, so that I don't need to reinvent the wheel. Better, still, would be to find someone who has a fabricated cover plate that I could use on my car. Check with forrestkhaag on the website he has some nice carbon fiber covers he has fabricated. |
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| Keith914 |
Aug 15 2017, 11:09 AM
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#11
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Member Group: Members Posts: 248 Joined: 29-April 16 From: Laguna Beach, California 92651 Member No.: 19,948 Region Association: Southern California |
Cover was made from a donor car. Note, the hatch was made wider low on the passenger side to have better access to the distributor. (Pic upside down?)
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| jkb944t |
Aug 15 2017, 11:22 AM
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#12
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Member Group: Members Posts: 464 Joined: 17-January 05 From: Canton, OH Member No.: 3,459 Region Association: None |
On mine I made the top of the hole is 5.25 wide and the bottom of the hole is 5.62 wide. The hole is 6.75 high and the bottom edge of the hole is 10.12 up from the top of the center tunnel.
This is my build thread with the pictures of the access cover on post #56: http://www.914world.com/bbs2/index.php?sho...19197&st=40 Jeff B |
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| Mark Henry |
Aug 15 2017, 11:40 AM
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#13
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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 |
I'm not working with any itty-bitty keyhole, go big or go home. (IMG:style_emoticons/default/biggrin.gif)
(IMG:http://www.914world.com/bbs2/uploads/post-26-1496895808.jpg) (IMG:http://www.914world.com/bbs2/uploads/post-26-1496895853.jpg) (IMG:http://www.914world.com/bbs2/uploads/post-26-1497236248.jpg) (IMG:http://www.914world.com/bbs2/uploads/post-26-1497554426.jpg) |
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| mepstein |
Aug 15 2017, 11:44 AM
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#14
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914-6 GT in waiting Group: Members Posts: 19,271 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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QUOTE(Mark Henry @ Aug 15 2017, 01:40 PM) I'm not working with any itty-bitty keyhole, go big or go home. (IMG:style_emoticons/default/biggrin.gif) Slide the engine in through the passenger compartment? |
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| Mark Henry |
Aug 15 2017, 11:48 AM
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#15
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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 |
QUOTE(mepstein @ Aug 15 2017, 01:44 PM) QUOTE(Mark Henry @ Aug 15 2017, 01:40 PM) I'm not working with any itty-bitty keyhole, go big or go home. (IMG:style_emoticons/default/biggrin.gif) Slide the engine in through the passenger compartment? (IMG:style_emoticons/default/laugh.gif) |
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| rgalla9146 |
Aug 15 2017, 12:00 PM
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#16
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Advanced Member Group: Members Posts: 4,552 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None
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If I had a twin plug engine I'd get a plexi cover. (IMG:style_emoticons/default/biggrin.gif) |
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| Mark Henry |
Aug 15 2017, 12:06 PM
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#17
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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 |
QUOTE(rgalla9146 @ Aug 15 2017, 02:00 PM) I know...sucks right? (IMG:style_emoticons/default/unsure.gif) I have that gorgeous dizzy and it's totally hidden in a 914 bay. (IMG:style_emoticons/default/sad.gif) |
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| Mitox |
Aug 15 2017, 02:15 PM
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#18
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Member Group: Members Posts: 395 Joined: 26-October 15 From: SW Virginia Member No.: 19,302 Region Association: South East States
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This is a little off subject, but I am cutting the same access, and am considering the Clewett Engineering serpentine belt conversion. It's crazy expensive, but would make life much easier.
Does anyone have any experience with the conversion? |
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| Steve |
Aug 15 2017, 04:20 PM
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#19
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914 Guru Group: Members Posts: 5,585 Joined: 14-June 03 From: Orange County, CA Member No.: 822 Region Association: Southern California
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Curious how big does the hole need to be to replace the alternator? I have no problems changing the belt or getting to the distributor without putting a hole in the firewall. However I do not want to pull the motor or injection to replace the alternator some day.
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| earossi |
Aug 15 2017, 04:50 PM
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#20
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Member Group: Members Posts: 210 Joined: 8-December 11 From: Chicago, Il Member No.: 13,878 Region Association: Upper MidWest |
QUOTE(Steve @ Aug 15 2017, 05:20 PM) Curious how big does the hole need to be to replace the alternator? I have no problems changing the belt or getting to the distributor without putting a hole in the firewall. However I do not want to pull the motor or injection to replace the alternator some day. The purpose of the hole is to replace the fan belt, and perhaps to access the distributor. Replacing the alternator through such a hole is problematic. To remove the alternator you have to release the fan housing, you must release the metal strap that holds the fan housing in place. To do that, you have to remove the hardware that attaches the plastic shroud to the to the fan housing. And there needs to be access to disconnect the wiring on the back side of the alternator. I believe it would be difficult if not impossible to do that work through a hole in the sheetmetal. Lastly, keep in mind that the hole would need to be large enough to pass the fan housing and attached alternator. Thats a hole much larger than the small hole needed to replace the fan belt. For me, the easiest path is to drop the engine in the 3 to 4 hours required, in order to access the alternator. |
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