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Old June 28th, 2012, 07:56 PM
MGPete's Avatar
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Pete C
'95 D90 SW
Join Date: Aug 2011
Location: South Jersey
Posts: 140
as long as we're talking about oil cooler lines...

So I read with interest all the recommendations to change the oil cooler lines, some with illustrations. What I'd like to know is whether the problem is the proximity to the exhaust manifold heat that causes the lines to fail...or the lines WILL fail and the proximity to the exhaust heat causes the fire?
The reason I ask is my oil cooler lines are at least 6-7 inches away from the manifold, and from some of the pictures that have been posted, I've seen several that were much closer.
I plan to replace mine with the Trailhead 4x4 lines, but I am curious as to the source of the problem.

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Old June 28th, 2012, 08:02 PM
rijosho's Avatar
Status: Online
1995 Black ST - Rhinolined edition
Research Assistant/Eagle Eyes
Join Date: Apr 2009
Location: NYC
Posts: 16,618
Main causes of oil cooler line fires from what I've seen are:

1. Procrastination
2. Denial
3. Age - dry rot
4. Location - exhaust

Originally Posted by bjf View Post
I am talking purely from an aesthetics standpoint.
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Old June 29th, 2012, 06:51 PM
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Kelly Block
1994 D-90 #1138
Join Date: Mar 2012
Location: La Junta, CO
Posts: 31
I just changed mine today, I got a set from Eric at Trailhead. Very easy to do, smaller hands would help. Started bending my old lines back and forth, sure enough one cracked bad enough to leak. I would change yours ASAP if you don't know if they ever have been changed.
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Old June 29th, 2012, 07:25 PM
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Viton Johnnson
Smart 4x4
Join Date: Jan 2009
Location: La
Posts: 1,143
Look at these items,

Especially this item,
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Old June 29th, 2012, 08:05 PM
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71 SIIA, 03 RR, 94 D90 (PO), 83 110
Join Date: Mar 2011
Location: Dallas TX
Posts: 612
So I'm not up to speed on the oil cooler lines, just the generalities

Is it specific to NAS 90's or 110's as well?
2003 RR L322
1971 Series IIA
1983 110 SW (Incoming)
1994 D90 ST (PO)
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