C1 & C2 Corvettes General C1 Corvette & C2 Corvette Discussion, Technical Info, Performance Upgrades, Project Builds, Restorations

[C2] Distributor clearance issue

Thread Tools
 
Search this Thread
 
Old Jun 3, 2021 | 10:58 PM
  #1  
Brads67's Avatar
Brads67
Thread Starter
Advanced
10 Year Member
 
Joined: Jan 2012
Posts: 98
Likes: 11
From: Greenfield, WI
Default Distributor clearance issue

I can't remove my distributor without moving the engine forward first. The distributor is tucked under the "rain gutter" at the back of the engine bay opening in the body. In the side shot picture you can't even see the rear most (in this case #6) plug wire. The angled picture shows it hiding underneath.
What would be causing this? Could the body be mounted this far forward on the frame? Is there that much play in the mounting points that this could happen?


Reply
Old Jun 4, 2021 | 12:29 AM
  #2  
John S 1961's Avatar
John S 1961
Melting Slicks
20 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jul 2004
Posts: 2,452
Likes: 315
From: Scottsdale AZ
Default

Remove cap and wires
Reply
Old Jun 4, 2021 | 09:34 AM
  #3  
Patrick03's Avatar
Patrick03
Drifting<br><img src="/forums/images/ranks/2k-3k.gif" border="0">
Supporting Gold
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2016
Posts: 1,868
Likes: 827
From: Grosse Pointe, MI
Default

Your engine appears to be set back further than mine is. I don't recall the transmission mounts or motor mounts having a lot of fore/aft play in them so not sure why your engine sits so far back. You could try loosening those mounting points and the exhaust hangers at the trans and shifting the engine forward. Or, as suggested, remove wires and cap to get the distributor out.




Patrick
Reply
Old Jun 4, 2021 | 09:40 AM
  #4  
65hihp's Avatar
65hihp
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2009
Posts: 7,992
Likes: 3,974
From: Cold Harbor, VA
Default

We don't know enough to be any help.
We can see your engine is not stock, with the coil mounted on the left, rather than the right.
We don't know the year of your car,
What frame is under it,
What engine is in it, or the intake manifold on it.
Provide a lot more detail about the car, and someone here should be able to help.
Reply
Old Jun 4, 2021 | 09:53 AM
  #5  
Brads67's Avatar
Brads67
Thread Starter
Advanced
10 Year Member
 
Joined: Jan 2012
Posts: 98
Likes: 11
From: Greenfield, WI
Default

Originally Posted by John S 1961
Remove cap and wires
Originally Posted by Patrick03
Your engine appears to be set back further than mine is. I don't recall the transmission mounts or motor mounts having a lot of fore/aft play in them so not sure why your engine sits so far back. You could try loosening those mounting points and the exhaust hangers at the trans and shifting the engine forward. Or, as suggested, remove wires and cap to get the distributor out.




Patrick
If I take the rear wires off first I can get the cap off. However, the distributor still needs to be taken out straight up several inches before it clears the intake and by then the body of the distributor kits the fiberglass and cannot be removed. I literally need to disconnect the motor mounts at the engine block, the transmission from the cross member, the exhaust pipes from the manifolds, the clutch and throttle linkage and move the engine forward an inch or so to be able to remove the distributor.
I have not seen any other cars at shows that are in this situation, which is why I was wondering if the body might be mounted too far forward on the frame but I don't know how much play there is in the body mounting points. Obviously the engine cannot be mounted with any adjustment since the frame mounts are welded on.
Reply
Old Jun 4, 2021 | 10:04 AM
  #6  
Brads67's Avatar
Brads67
Thread Starter
Advanced
10 Year Member
 
Joined: Jan 2012
Posts: 98
Likes: 11
From: Greenfield, WI
Default

Originally Posted by 65hihp
We don't know enough to be any help.
We can see your engine is not stock, with the coil mounted on the left, rather than the right.
We don't know the year of your car,
What frame is under it,
What engine is in it, or the intake manifold on it.
Provide a lot more detail about the car, and someone here should be able to help.
The engine configuration is basically stock but it has an Edelbrock RPM Air Gap aluminum manifold but that makes no difference since the distributor has to be in the same location otherwise it wouldn't line up with the block. It is a 427 which is why the coil is on the drivers side which is stock. It is a 1967 with a stock factory frame.
Reply
Old Jun 4, 2021 | 10:06 AM
  #7  
vettsplit 63's Avatar
vettsplit 63
Le Mans Master
10 Year Member
Veteran: Army
 
Joined: Sep 2009
Posts: 9,151
Likes: 481
From: "You may all go to Hell- and I will go to Texas- Davy Crockett
St. Jude Donor '12
Default

It is possible when mounting the body to have about 3/4" adjustment, as I remember. If it was shoved to the extreme front of the mounting holes I guess that would account for that. It would be a whole lot easier to loosen all the mounting bolts and move the body back than to move the engine and trans.

Last edited by vettsplit 63; Jun 4, 2021 at 10:09 AM.
Reply
Old Jun 4, 2021 | 10:16 AM
  #8  
Brads67's Avatar
Brads67
Thread Starter
Advanced
10 Year Member
 
Joined: Jan 2012
Posts: 98
Likes: 11
From: Greenfield, WI
Default

Originally Posted by vettsplit 63
It is possible when mounting the body to have about 3/4" adjustment, as I remember. If it was shoved to the extreme front of the mounting holes I guess that would account for that.
Thanks vettsplit 63. Would it be as "simple" as loosening all the body mount bolts and sliding the body backwards to gain as much clearance as possible? I don't think I would need to disconnect anything (except for maybe the throttle and clutch linkage and do a final adjustment afterwards) since I would not be doing a body removal. I shouldn't have to do anything with the shifter since it is a Hurst shifter that is attached to the transmission and not the frame like the Muncie shifter was. I have never done this before so I am not very familiar with all it takes to do it.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Jun 4, 2021 | 10:19 AM
  #9  
suntreemcanic's Avatar
suntreemcanic
Instructor
15 Year Member
All Eyes On Me
Liked
 
Joined: Apr 2011
Posts: 128
Likes: 22
From: Sisters Oregon
Default

Can the engine be lifted enough in the front to remove the front engine mounts. Then lower engine down in the front. That will tilt the distributor forward and then maybe ii will clear the restrictions. I do not know about fan clearance maybe that would also have to be removed.
Reply
Old Jun 4, 2021 | 10:33 AM
  #10  
leif.anderson93's Avatar
leif.anderson93
Le Mans Master
10 Year Member
Veteran: Air Force
Community Builder
Top Answer: 5
 
Joined: Feb 2014
Posts: 8,935
Likes: 5,477
From: Richardson Texas
Default

Not sure by your pictures what all has been done to your 427 but a stock setup had no issues removing the distributor straight up out of the engine bay.

Reply
Old Jun 4, 2021 | 10:53 AM
  #11  
vettsplit 63's Avatar
vettsplit 63
Le Mans Master
10 Year Member
Veteran: Army
 
Joined: Sep 2009
Posts: 9,151
Likes: 481
From: "You may all go to Hell- and I will go to Texas- Davy Crockett
St. Jude Donor '12
Default

Body shift is not as simple as just loosening bolts and sliding it back- the bumper braces are bolted to the frame.........
Reply
Old Jun 4, 2021 | 11:13 AM
  #12  
65hihp's Avatar
65hihp
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2009
Posts: 7,992
Likes: 3,974
From: Cold Harbor, VA
Default

If you remove the console and boot, how is the shifter centered in the hole in the tunnel? On side view, how are the wheels/tires centered in the wheel wells?
Do they seem to be offset to the back of the wheel wells? It would be subtle but should be noticeable if you focus on it.
The radiator core support is tied to the inner fenders in a fixed location. Sliding the body back 3/4" would bring the radiator back the same into the front of the engine.
How is the fan located in the fan shroud now? Back of it so the whole fan is outside of the shroud?
Reply
Old Jun 4, 2021 | 01:00 PM
  #13  
Brads67's Avatar
Brads67
Thread Starter
Advanced
10 Year Member
 
Joined: Jan 2012
Posts: 98
Likes: 11
From: Greenfield, WI
Default

Originally Posted by 65hihp
If you remove the console and boot, how is the shifter centered in the hole in the tunnel? On side view, how are the wheels/tires centered in the wheel wells?
Do they seem to be offset to the back of the wheel wells? It would be subtle but should be noticeable if you focus on it.
The radiator core support is tied to the inner fenders in a fixed location. Sliding the body back 3/4" would bring the radiator back the same into the front of the engine.
How is the fan located in the fan shroud now? Back of it so the whole fan is outside of the shroud?
Good points. It appears that the body is pretty well centered on the wheels and the fan is mostly inside of the shroud, with nearly an inch of clearance from the front of the blades to the radiator side of the shroud. So if the body were to be moved back 3/4" there would be a slight clearance for the fan blades to the front of the shroud.



Reply
Old Jun 4, 2021 | 01:13 PM
  #14  
AZDoug's Avatar
AZDoug
Race Director
20 Year Member
Liked
Top Answer: 1
Top Answer: 3
 
Joined: Oct 2005
Posts: 12,470
Likes: 1,548
From: Camp Verde AZ
C1 of Year Finalist (performance mods) 2019
2017 C1 of Year Finalist
Default

Where is the wiper motor? Looks like the distributor is occupying that space.
Doug
Reply
Old Jun 4, 2021 | 02:00 PM
  #15  
vettsplit 63's Avatar
vettsplit 63
Le Mans Master
10 Year Member
Veteran: Army
 
Joined: Sep 2009
Posts: 9,151
Likes: 481
From: "You may all go to Hell- and I will go to Texas- Davy Crockett
St. Jude Donor '12
Default

It would also be interesting to see where the harmonic balancer is in relation to the front crossmember. I wish I could look at the car/engine placement in person
Reply
Old Jun 4, 2021 | 04:01 PM
  #16  
Brads67's Avatar
Brads67
Thread Starter
Advanced
10 Year Member
 
Joined: Jan 2012
Posts: 98
Likes: 11
From: Greenfield, WI
Default

Originally Posted by AZDoug
Where is the wiper motor? Looks like the distributor is occupying that space.
Doug
It's back there, but the distributor cap is very close to it.
Reply
Old Jun 4, 2021 | 07:04 PM
  #17  
silver837's Avatar
silver837
Le Mans Master
Supporting Gold
Veteran: Army
Liked
Loved
Community Favorite
 
Joined: Mar 2017
Posts: 5,127
Likes: 1,612
From: Nor- Cal
Default

How does the transmission bolt to the crossmember? If it were to low it would cause the engine to pivot down and the distributor would come too close to the firewall.
I would look at the connection piece and cushion .
See the photos in the 63 seatcover thread for reference.

Last edited by silver837; Jun 4, 2021 at 07:08 PM.
Reply

Get notified of new replies

To Distributor clearance issue

Old Jun 4, 2021 | 08:29 PM
  #18  
Brads67's Avatar
Brads67
Thread Starter
Advanced
10 Year Member
 
Joined: Jan 2012
Posts: 98
Likes: 11
From: Greenfield, WI
Default

Originally Posted by silver837
How does the transmission bolt to the crossmember? If it were to low it would cause the engine to pivot down and the distributor would come too close to the firewall.
I would look at the connection piece and cushion .
See the photos in the 63 seatcover thread for reference.
I searched for the thread above but could not find it. Here is a picture of my rear transmission support for reference. I also included a picture of the bolt heads with reference to the slots in the crossmember. The bolts are offset to the rear of the slots.


Reply
Old Jun 4, 2021 | 08:32 PM
  #19  
Brads67's Avatar
Brads67
Thread Starter
Advanced
10 Year Member
 
Joined: Jan 2012
Posts: 98
Likes: 11
From: Greenfield, WI
Default

Originally Posted by vettsplit 63
It would also be interesting to see where the harmonic balancer is in relation to the front crossmember. I wish I could look at the car/engine placement in person
Here is a picture of the balancer from below. The rear face of the balancer is approximately 3/4" to the rear of the front crossmember.

Reply
Old Jun 5, 2021 | 12:22 AM
  #20  
silver837's Avatar
silver837
Le Mans Master
Supporting Gold
Veteran: Army
Liked
Loved
Community Favorite
 
Joined: Mar 2017
Posts: 5,127
Likes: 1,612
From: Nor- Cal
Default

If you have a copy of the AIM , check to see if your transmission is installed correctly.
Obviously something is not right. It is going to take some time and detective work to figure it out.
Reply



All times are GMT -4. The time now is 08:40 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE