Wire routing.
Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,498
Likes: 0
From: Bucks county Pa
Wire routing.
Does someone here have the diagram for proper routing of the spark plug wires for an L98 (1990)and could you post it? Where can i buy the right clips and retainers for them too? :seeya
Instructor
Joined: Aug 2002
Posts: 198
Likes: 0
From: Yucaipa CA
Re: Wire routing. (VetBoy89)
I've got the 1990 manual which uses the same diagram that VetBoy89 provided from his 89 manual. The bad news is that our 1990s have the newer center screw valve covers while the picture shows the perimeter screw (pre-1990) valve covers. Since the wire retainers in the provided diagrams use the older perimeter screw locations for attachment, I do not know how the 1990 retainers originally looked.
Does someone have a 1991 manual and does it show the later valve cover configuration?
Does someone have a 1991 manual and does it show the later valve cover configuration?
Le Mans Master
Joined: Dec 1999
Posts: 8,540
Likes: 1
From: And on the fifth day, subpoenas were served to Obama senior staff
Re: Wire routing. (cash's90)
Routing in the manual is wrong, doesn't even show the EGR tube - which causes some interesting problems with the secondary wires.
BTW, center bolt valve covers started with the aluminum heads in late 86.
BTW, center bolt valve covers started with the aluminum heads in late 86.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: Wire routing. (cash's90)
Actually the diagram (same one in my '88 GM Shop Manual) is very close though it shows perimiter bolt covers. The wire retainers just come up from below the valve covers with center bolts.
The other issue is that there are two clips under the EGR tube. The lower holds three wires; the upper holds the #2 plug wire. There are also heat protective sleeves over the wires where they pass under the EGR tube.
There was a note about routing the #5 & #7 wires back by the separator to minimize cross-talk but I can't find it either in my Shop Manual or in my Haynes. I don't think it's an issue if you're using spiral-wound wires.
The other issue is that there are two clips under the EGR tube. The lower holds three wires; the upper holds the #2 plug wire. There are also heat protective sleeves over the wires where they pass under the EGR tube.
There was a note about routing the #5 & #7 wires back by the separator to minimize cross-talk but I can't find it either in my Shop Manual or in my Haynes. I don't think it's an issue if you're using spiral-wound wires.
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Thread Starter
Drifting
Joined: Nov 2001
Posts: 1,498
Likes: 0
From: Bucks county Pa
Re: Wire routing. (WAY2FAST)
I don't see any diagram? Can you repost or send it to me too?
way2fast@charter.net
Thanks!
W2F
way2fast@charter.net
Thanks!
W2F
