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Unread 07-13-2014, 07:53 AM   #1
txhunter13
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1978 CJ5 
 
Join Date: Jul 2014
Location: Collinsville, Texas
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Question before putting timing cover back on

I've replaced my timing chain on my 78' CJ5 and put everything back in how it was. I've got the keys on the crank cams lined up to 6 o'clock and 12 o'clock like they should be. Am I safe to go ahead and put the cover back on? I know I will have to line up the distributor but can't I do that with the cover on? I would hate to seal up the gasket and all just to have to go back in there and take it all down again. Any help would be appreciated, thanks.

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Unread 07-13-2014, 08:31 AM   #2
Mike Romain
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You need to have the marks so the chain is on both and count the pins between the marks as a double check.
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86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
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Unread 07-13-2014, 11:23 AM   #3
jblue1555
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Beware of matching keyways. Match the timing marks on the gears.
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Unread 07-13-2014, 11:46 AM   #4
Mike Romain
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Quote:
Originally Posted by jblue1555 View Post
Beware of matching keyways. Match the timing marks on the gears.
Oops, missed that. You are correct, he needs the marks on the gears to line up with each other, then put the top one at 10:00 I think it is to count the pins between marks.
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86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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Unread 07-14-2014, 08:02 AM   #5
txhunter13
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Yes, I've got exactly 20 links between those 2 marks. About to put the timing cover back on, pretty sure I will need help with syncing the distributor!
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Unread 07-14-2014, 08:08 AM   #6
gmakra
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20 is not the number you need IRRC is 15
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Unread 07-14-2014, 08:10 AM   #7
Mike Romain
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Quote:
Originally Posted by txhunter13 View Post
yes, i've got exactly 20 links between those 2 marks. About to put the timing cover back on, pretty sure i will need help with syncing the distributor!
v8?
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86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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Unread 07-14-2014, 08:16 AM   #8
txhunter13
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Quote:
Originally Posted by Mike Romain View Post
v8?
Yes, it's a V8.
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Unread 07-14-2014, 08:37 AM   #9
txhunter13
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I'm almost sure I read for the v8 that it is 20 pins from each mark, can anyone confirm this?
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Unread 07-14-2014, 08:45 AM   #10
Mike Romain
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Quote:
Originally Posted by txhunter13 View Post
I'm almost sure I read for the v8 that it is 20 pins from each mark, can anyone confirm this?
Another poster just checked his V8 and he said he counted 20 pins which matches my memory of them.
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86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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Unread 07-14-2014, 09:06 AM   #11
txhunter13
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Quote:
Originally Posted by Mike Romain View Post
Another poster just checked his V8 and he said he counted 20 pins which matches my memory of them.
Alright good, I know this is right. I'm about to add the timing cover back on. Is there a certain position I should leave the crank cam or anything before I seal the cover back on?
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Unread 07-14-2014, 09:30 AM   #12
Mike Romain
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Quote:
Originally Posted by txhunter13 View Post

Alright good, I know this is right. I'm about to add the timing cover back on. Is there a certain position I should leave the crank cam or anything before I seal the cover back on?
I usually put the cover on with the bolts a bit loose, then I install the balancer to center it in the seal and tighten down the bolts I can reach to hold it. I then remove the balancer to get the rest of the bolts.

After that you will need to put your finger over #1 plug hole while turning the engine to 0 on the timing mark to verify you are on the compression, not exhaust stroke. You then can set the distributor with the rotor pointing to # 1 on the cap.
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86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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Unread 07-14-2014, 10:43 AM   #13
gmakra
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Sorry me brain was stuck on the 6 cylinder.
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Unread 07-14-2014, 10:49 AM   #14
txhunter13
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If I was going to remove the oil pan, would it be best to do it now while the timing cover is off? Or is it fine to remove it after the cover is placed back on? Thank you so much for your help!
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Unread 07-14-2014, 12:56 PM   #15
Mike Romain
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I would do it now. It can be a pain getting that bottom seal from the bottom.
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Mike
86/00 CJ7 Laredo, 33x9.5 BFG AT's, 'glass nose to tail in '00, 'New' frame,wires and plumbing in '09. Carter BBD Carbed 4.0 HO in '10.
89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
Some Canadian Bush Jeep Runs and Build Photos: http://mikeromainjeeptrips.shutterfly.com (10 new albums added Sept 16/10)
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