Exhaust Flange bolts and clearance to Body - FFCars.com : Factory Five Racing Discussion Forum

 
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post #1 of 9 (permalink) Old 02-16-2017, 04:53 PM Thread Starter
Baghdad Bob
 
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Exhaust Flange bolts and clearance to Body

This is my continuation of my exhaust cut out, engine mount, and exhaust flange series of issues. I suppose mounting Brackets as well.

Summary:
The engine flange bolts on the DS scrape on the body and are difficult to tighten.

Originally, I thought my only issue was with the cutouts being too small, or the engine not seethed fully in the mounts The cutouts have been enlarged, after I wrestled with trying to get the engine to seat lower in the engine mounts. No luck there. Now I see that the header flnge bolts on the drivers side are dangerously close to the inside of the body so much that there is rubbing.

On the PS there is plenty of room.

If I divide the clearance avail I get about 1 3/16" per side, from the header flange to the body before adding the sidepipes.

Attached Images
File Type: jpg cutout clearance 1.jpg (238.2 KB, 98 views)
File Type: jpg cutout clearance 2.jpg (208.2 KB, 95 views)

Ordered MKIII Feb 26 2009
Converted to MKIV Order March 2010 (worked overseas for 4 years)
331 from Engine Factory
Halibrand 15" Wheels, BFG Radial TA Tires
Build School July 2010
Recieved Kit July 2010, #7287

Adds
Power Steering Rack & Offset Alum Bushings - Breeze, PS Heidt Valve
Modified quiet sidepipes - Breeze
sidepipe heat shields cobrastuff
Power Brakes - Whitby
Hydralic Clutch & Hydralic Brake Master Cyl. Modern Driveline
Trunk Battery Box -FFmetalb
Firewall Forward -FFmetal
Turn Signal switch - Russ Thompson
Passenger Footbox mod Russ Thompson
Russ Thompson accelerator pedal
Battery in dropped trunk FFMETAL
Tremec TKO600 .64 5TH

As of Feb 2017

Fighting with Motor Mounts to get engine to seal all the way down in mounts so that side pipes will fit.

First start April 2016
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Body is being prepped for paint

Last edited by mcwho; 02-16-2017 at 05:26 PM.
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post #2 of 9 (permalink) Old 02-16-2017, 07:43 PM
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Splash panels installed?

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post #3 of 9 (permalink) Old 02-16-2017, 08:00 PM Thread Starter
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Yes, Splash panels are installed.

Ordered MKIII Feb 26 2009
Converted to MKIV Order March 2010 (worked overseas for 4 years)
331 from Engine Factory
Halibrand 15" Wheels, BFG Radial TA Tires
Build School July 2010
Recieved Kit July 2010, #7287

Adds
Power Steering Rack & Offset Alum Bushings - Breeze, PS Heidt Valve
Modified quiet sidepipes - Breeze
sidepipe heat shields cobrastuff
Power Brakes - Whitby
Hydralic Clutch & Hydralic Brake Master Cyl. Modern Driveline
Trunk Battery Box -FFmetalb
Firewall Forward -FFmetal
Turn Signal switch - Russ Thompson
Passenger Footbox mod Russ Thompson
Russ Thompson accelerator pedal
Battery in dropped trunk FFMETAL
Tremec TKO600 .64 5TH

As of Feb 2017

Fighting with Motor Mounts to get engine to seal all the way down in mounts so that side pipes will fit.

First start April 2016
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First Go-Cart June 2016

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Body is being prepped for paint
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post #4 of 9 (permalink) Old 02-16-2017, 08:43 PM Thread Starter
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My kit came with bulb seal, foam strip and felt strip. The manual stated to install the foam strip on the rails along side the hood. Could it be the felt strip was supposed to go there? Its about 1/2" thich and dos NOT compress like the foam does.

Thnt would account for some of the clearance.

Just spoke to Dan G at FFR, I do have it setup correct and the one side he hays does usually come closer on the DS.

Next, make the cutout bigger !

Ordered MKIII Feb 26 2009
Converted to MKIV Order March 2010 (worked overseas for 4 years)
331 from Engine Factory
Halibrand 15" Wheels, BFG Radial TA Tires
Build School July 2010
Recieved Kit July 2010, #7287

Adds
Power Steering Rack & Offset Alum Bushings - Breeze, PS Heidt Valve
Modified quiet sidepipes - Breeze
sidepipe heat shields cobrastuff
Power Brakes - Whitby
Hydralic Clutch & Hydralic Brake Master Cyl. Modern Driveline
Trunk Battery Box -FFmetalb
Firewall Forward -FFmetal
Turn Signal switch - Russ Thompson
Passenger Footbox mod Russ Thompson
Russ Thompson accelerator pedal
Battery in dropped trunk FFMETAL
Tremec TKO600 .64 5TH

As of Feb 2017

Fighting with Motor Mounts to get engine to seal all the way down in mounts so that side pipes will fit.

First start April 2016
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First Go-Cart June 2016

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Body is being prepped for paint

Last edited by mcwho; 02-16-2017 at 09:38 PM.
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post #5 of 9 (permalink) Old 02-17-2017, 12:32 AM
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Yes make the cut out bigger. D side I have to trim above the bolt heads .....makes yours about normal

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post #6 of 9 (permalink) Old 02-17-2017, 01:42 PM
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These could help. Scroll down to 3/8 diameter.
https://www.mcmaster.com/#standard-f...crews/=16e6b93

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post #7 of 9 (permalink) Old 02-17-2017, 02:18 PM
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I was thinking along the same lines as Craig. Use a hex head bolt or something like what Craig suggested to minimize the thickness the head. Put the bolt through from the out side and lose the gasket which will gain you another 1/8". (I think most of us use silicone sealant, I know I do.) Doing all this you may be able to get away with only having to open up the cut out just enough to get the bolt into the hole. I ended up opening my drivers side up more than it needed to be and I've never liked the looks of it.
Dave

MK3#5902 picked up 1/13/07, 88 donor 306 w/b303 EFI purchased 3/31/07,first start and gocart ride 9/20/07 color- Ford Performance White w/ True Blue Metalic stripes. Inspected and registered 7/31/08
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post #8 of 9 (permalink) Old 02-18-2017, 07:04 PM
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Minimizing DS cutout area

Here's what I did to minimize the DS cutout while providing clear access to bolts, esp the front one.
-norm
Attached Images
File Type: jpg IMG_0008.jpg (243.4 KB, 39 views)
File Type: jpg IMG_0009.jpg (237.1 KB, 35 views)

Mk4 #8306 Levy 347 w/FAST 2.0 Sportsman EFI; 8.8" (3.55); dual roll bars; 17" Halibrands /Nitto 555s; Breeze front battery; std FFR dash plus a map light (remember them?); Gas'n pipes; seat heaters (no real heater, no wipers, no FB mods, ...), just your basic Mk4 build.
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post #9 of 9 (permalink) Old 02-19-2017, 02:35 PM Thread Starter
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JRTDOgs,

Your solution is one of the options that I am considering plus maybe the top bolt being a buttonhead bolt to eliminate a lot of interference with the body as well.

Ordered MKIII Feb 26 2009
Converted to MKIV Order March 2010 (worked overseas for 4 years)
331 from Engine Factory
Halibrand 15" Wheels, BFG Radial TA Tires
Build School July 2010
Recieved Kit July 2010, #7287

Adds
Power Steering Rack & Offset Alum Bushings - Breeze, PS Heidt Valve
Modified quiet sidepipes - Breeze
sidepipe heat shields cobrastuff
Power Brakes - Whitby
Hydralic Clutch & Hydralic Brake Master Cyl. Modern Driveline
Trunk Battery Box -FFmetalb
Firewall Forward -FFmetal
Turn Signal switch - Russ Thompson
Passenger Footbox mod Russ Thompson
Russ Thompson accelerator pedal
Battery in dropped trunk FFMETAL
Tremec TKO600 .64 5TH

As of Feb 2017

Fighting with Motor Mounts to get engine to seal all the way down in mounts so that side pipes will fit.

First start April 2016
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


First Go-Cart June 2016

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Body is being prepped for paint
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