Distributor installation
Thread Starter
Drifting
Joined: Jun 2001
Posts: 1,625
Likes: 1
From: Zagreb, Croatia
Distributor installation
Since I still didn't solve my problem with timing
( http://forums.corvetteforum.com/zerothread?id=618475 )
I pulled out distributor and started all over again.
I used this method:
The distributor went in like into butter but while inserting it
the teeth made rotor rotate almost 40* towards #8 on cap.
Is this the right position?
Now the timing mark on balancer is on 0* , #1 is on firing
but the rotor is facing almost to #8 on cap.
Should I turn one tooth back ( retard )?
( http://forums.corvetteforum.com/zerothread?id=618475 )
I pulled out distributor and started all over again.
I used this method:
OK ~ so, let's go the long route and make 100% sure nothing is overlooked:
1: Remove the driver side valve cover
2: Rotate engine (clockwise as you face the engine from the front) until the #1 cylinder intake valve opens, then starts to close.
3: Continue rotation until the timing mark comes into view, then bring it to TDC on the timing cover timing scale
4: As Caboboy has indicated, scribe the #1 plug wire orientation on the distributor then drop into the bore while trying to maintain the rotor button at the #1 location.
5: While holding the rotor at the index mark, look at bottom side of distributor shaft at the male slot and make a mental note of how the male tab is oriented.
6: Look into block where distributor will be inserted (use a strong flashlight) and look at the oil pump drive
7: If drive slot in oil pump drive is not close to the same index as distributor, use a long standard screwdriver and turn the oild pump drive to as close of a match as you can achieve.
8: Drop distributor into the block while holding rotor button at scribed mark. You may have to allow the rotor to turn slightly to firmly seat the distributor.
9: If you cannot fully seat the distributor at this orientation, allowing for movement for final timing adjustment....... Then;
10: Remove distributor and adjust the oil pump drive again with a screwdriver.
11: Thru trial and error, you will be able to drop the distributor exactly where you want it.
12: Install distributor clamp and tighten to where it firmly holds distributor in place, but allows for rotation whith a little force.
13: Install valve cover
14: Verify that rotor button is pointing at the scribed mark on distributor (see step #4)
15: Install distributor cap
16: Start engine
17: Using a timing light, time the engine per proper procedure for your year and model
18: Stop engine and tighten distributor
19: Start engine and verify that the timing did not change when the distributor was fully tightened.
1: Remove the driver side valve cover
2: Rotate engine (clockwise as you face the engine from the front) until the #1 cylinder intake valve opens, then starts to close.
3: Continue rotation until the timing mark comes into view, then bring it to TDC on the timing cover timing scale
4: As Caboboy has indicated, scribe the #1 plug wire orientation on the distributor then drop into the bore while trying to maintain the rotor button at the #1 location.
5: While holding the rotor at the index mark, look at bottom side of distributor shaft at the male slot and make a mental note of how the male tab is oriented.
6: Look into block where distributor will be inserted (use a strong flashlight) and look at the oil pump drive
7: If drive slot in oil pump drive is not close to the same index as distributor, use a long standard screwdriver and turn the oild pump drive to as close of a match as you can achieve.
8: Drop distributor into the block while holding rotor button at scribed mark. You may have to allow the rotor to turn slightly to firmly seat the distributor.
9: If you cannot fully seat the distributor at this orientation, allowing for movement for final timing adjustment....... Then;
10: Remove distributor and adjust the oil pump drive again with a screwdriver.
11: Thru trial and error, you will be able to drop the distributor exactly where you want it.
12: Install distributor clamp and tighten to where it firmly holds distributor in place, but allows for rotation whith a little force.
13: Install valve cover
14: Verify that rotor button is pointing at the scribed mark on distributor (see step #4)
15: Install distributor cap
16: Start engine
17: Using a timing light, time the engine per proper procedure for your year and model
18: Stop engine and tighten distributor
19: Start engine and verify that the timing did not change when the distributor was fully tightened.
the teeth made rotor rotate almost 40* towards #8 on cap.
Is this the right position?
Now the timing mark on balancer is on 0* , #1 is on firing
but the rotor is facing almost to #8 on cap.
Should I turn one tooth back ( retard )?
Le Mans Master
Joined: Mar 2002
Posts: 5,889
Likes: 2
From: Castro Valley Calif.
St. Jude Donor '03 thru '26
Re: Distributor installation (Sliding)
Sliding, no.....that means you're on #8........it's where you end up that counts.
What you want to do is back up the rotor a tooth or two so that when it drops in, it's pointing at #1. If the base seats, fine..........if it doesn't seat, then turn the oil pump shaft with a long screwdriver to match up with the key on the distributor shaft. That will allow it to seat completely.
Don't forget to add the gasket to the distributor base before you put the clamp on! :cheers:
What you want to do is back up the rotor a tooth or two so that when it drops in, it's pointing at #1. If the base seats, fine..........if it doesn't seat, then turn the oil pump shaft with a long screwdriver to match up with the key on the distributor shaft. That will allow it to seat completely.
Don't forget to add the gasket to the distributor base before you put the clamp on! :cheers:
Thread Starter
Drifting
Joined: Jun 2001
Posts: 1,625
Likes: 1
From: Zagreb, Croatia
Re: Distributor installation (Caboboy)
Thanks!
Thats how I did it the first time ( pointing on #1 ) but
timing light said 37*ATDC :eek:
I'll try it again anyway.
I'll be back with results.
That may take a little since I'm gona adjust the valves while
valve covers are down.
Thats how I did it the first time ( pointing on #1 ) but
timing light said 37*ATDC :eek:
I'll try it again anyway.
I'll be back with results.
That may take a little since I'm gona adjust the valves while
valve covers are down.
Racer
Joined: Apr 2003
Posts: 280
Likes: 0
From: edmonton ab
Re: Distributor installation (Sliding)
Since I still didn't solve my problem with timing
( http://forums.corvetteforum.com/zerothread?id=618475 )
I pulled out distributor and started all over again.
I used this method:
OK ~ so, let's go the long route and make 100% sure nothing is overlooked:
1: Remove the driver side valve cover
2: Rotate engine (clockwise as you face the engine from the front) until the #1 cylinder intake valve opens, then starts to close.
3: Continue rotation until the timing mark comes into view, then bring it to TDC on the timing cover timing scale
4: As Caboboy has indicated, scribe the #1 plug wire orientation on the distributor then drop into the bore while trying to maintain the rotor button at the #1 location.
5: While holding the rotor at the index mark, look at bottom side of distributor shaft at the male slot and make a mental note of how the male tab is oriented.
6: Look into block where distributor will be inserted (use a strong flashlight) and look at the oil pump drive
7: If drive slot in oil pump drive is not close to the same index as distributor, use a long standard screwdriver and turn the oild pump drive to as close of a match as you can achieve.
8: Drop distributor into the block while holding rotor button at scribed mark. You may have to allow the rotor to turn slightly to firmly seat the distributor.
9: If you cannot fully seat the distributor at this orientation, allowing for movement for final timing adjustment....... Then;
10: Remove distributor and adjust the oil pump drive again with a screwdriver.
11: Thru trial and error, you will be able to drop the distributor exactly where you want it.
12: Install distributor clamp and tighten to where it firmly holds distributor in place, but allows for rotation whith a little force.
13: Install valve cover
14: Verify that rotor button is pointing at the scribed mark on distributor (see step #4)
15: Install distributor cap
16: Start engine
17: Using a timing light, time the engine per proper procedure for your year and model
18: Stop engine and tighten distributor
19: Start engine and verify that the timing did not change when the distributor was fully tightened.
The distributor went in like into butter but while inserting it
the teeth made rotor rotate almost 40* towards #8 on cap.
Is this the right position?
Now the timing mark on balancer is on 0* , #1 is on firing
but the rotor is facing almost to #8 on cap.
Should I turn one tooth back ( retard )?
( http://forums.corvetteforum.com/zerothread?id=618475 )
I pulled out distributor and started all over again.
I used this method:
OK ~ so, let's go the long route and make 100% sure nothing is overlooked:
1: Remove the driver side valve cover
2: Rotate engine (clockwise as you face the engine from the front) until the #1 cylinder intake valve opens, then starts to close.
3: Continue rotation until the timing mark comes into view, then bring it to TDC on the timing cover timing scale
4: As Caboboy has indicated, scribe the #1 plug wire orientation on the distributor then drop into the bore while trying to maintain the rotor button at the #1 location.
5: While holding the rotor at the index mark, look at bottom side of distributor shaft at the male slot and make a mental note of how the male tab is oriented.
6: Look into block where distributor will be inserted (use a strong flashlight) and look at the oil pump drive
7: If drive slot in oil pump drive is not close to the same index as distributor, use a long standard screwdriver and turn the oild pump drive to as close of a match as you can achieve.
8: Drop distributor into the block while holding rotor button at scribed mark. You may have to allow the rotor to turn slightly to firmly seat the distributor.
9: If you cannot fully seat the distributor at this orientation, allowing for movement for final timing adjustment....... Then;
10: Remove distributor and adjust the oil pump drive again with a screwdriver.
11: Thru trial and error, you will be able to drop the distributor exactly where you want it.
12: Install distributor clamp and tighten to where it firmly holds distributor in place, but allows for rotation whith a little force.
13: Install valve cover
14: Verify that rotor button is pointing at the scribed mark on distributor (see step #4)
15: Install distributor cap
16: Start engine
17: Using a timing light, time the engine per proper procedure for your year and model
18: Stop engine and tighten distributor
19: Start engine and verify that the timing did not change when the distributor was fully tightened.
The distributor went in like into butter but while inserting it
the teeth made rotor rotate almost 40* towards #8 on cap.
Is this the right position?
Now the timing mark on balancer is on 0* , #1 is on firing
but the rotor is facing almost to #8 on cap.
Should I turn one tooth back ( retard )?
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Re: Distributor installation (Caboboy)
It is AFTER the distributor has been installed and the base of the dist. is on the manifold, that you want the rotor pointing at the #1 plug wire terminal. When I rotate my engine towards TDC, I usually stop at about 10* before (BTDC) top dead center, to simulate a typical amount of desired advance. This isn't necessary, but it works for me.
Too late! You cannot install the gasket at this point. Put the gasket on the distributor BEFORE you stick it in the hole. Good luck, and...
RACE ON!!!
Don't forget to add the gasket to the distributor base before you put the clamp on! :cheers:
RACE ON!!!
