98 4.0 x-vin ohv exhaust help | Ford Explorer - Ford Ranger Forums - Serious Explorations

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98 4.0 x-vin ohv exhaust help

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April 16, 2016
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City, State
Alexander, NY
Year, Model & Trim Level
2008 mercury mountaineer
Have a question working on a project with 2 1998 Ford explorer 4.0 V6.
One is OHV (x-vin) 4x4 automatic xl, engine runs great but body is full of rust and is being put aside for future project.
I picked up another 1998 4.0 v6 4x4 xlt from South Carolina. It didn't have an engine but it is set up for sohc.

With a perfect ohv sitting around I decided to put it in the new truck.

The issue I'm running into is the exhaust.
What was on the truck wouldn't bolt to the engine. And I can't flippin find the y pipe that connects to the exhaust manifold for the 1998 ohv. I can't be the only one with this issue. Help!
 


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masospaghetti

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98 XLT, OHV, 4D, 4x4, 5M
I also can't find the Y-pipe listed for sale for my 98, which is strange.

However, on my departed 2000 model OHV, the Y-pipe actually had catalytic converters integrated into it. These are still for sale. I am not 100% sure if these fit the 98 but my guess is that it would.

More Information for PACESETTER 324917
 




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I found a image of exhaust breakdown for the 98 ohv and it looks like the y pipe is separate from the cats

Screenshot_20190820-104302.png
 




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And if I'm correct the 2000 is still in the 2nd gen bracket. So I'll have to look into that. Unfortunately I live in NY so emissions laws screw me on catt please prices
 




fast_dave

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'98 Spt 4.0 OHV 5 spd 4x4
@CrazedMomOf4NY

Your post is a little confusing, but I'll give it a shot ;)

My memory was also bad so I had to go back and re-write this post to correct it!

OK - RE: 1998 X Engine "Y" Pipe

Look at the emissions information sticker in your engine compartment.

Does it say that your 1998 X-Engine EX is California Compliant?

If it does say it's CA Compliant, here's what yours should look like.

A "Y" pipe with no Cats, that bolts to two (2) cats inline.

yma92iV.jpg


xmWTU1Q.jpg


xIWWBZK.jpg


BELOW = Here's a link to Walker Exhaust for more detailed info.
They're a OEM Supplier to Detroit so they're your best bet.
Rock Auto carries this brand.


Link: Exhaust Parts Lookup | Walker Exhaust Systems

NOTE; The CA Compliant Converters are sold at Rock Auto.
Walker # 81955 for $364
The picture BELOW from the Rick Auto Catalog is flipped "bass ackwards."
The 3 bolt Flange should be forward, and the 2 bolt flange should be afterwards.
See the pics above of my Ex for clarification!

Link: 1998 FORD EXPLORER 4.0L V6 OHV Catalytic Converter | RockAuto

81955__ra_p.jpg



Walker Exhaust Exhaust Diagram for X Engine (OHV) 2 Door Explorer ONLY!!!

Go to link listed ABOVE and enter info for YOUR Explorer!!!!



resultsDiagramDisplay.do


Hope that helps -
 




masospaghetti

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Huntington Beach, CA
Year, Model & Trim Level
98 XLT, OHV, 4D, 4x4, 5M
I found a image of exhaust breakdown for the 98 ohv and it looks like the y pipe is separate from the cats

View attachment 172964

Yes, a federal emission 98 has a blank Y-pipe, and two cats behind the Y-pipe. On 2000 models (and possibly CA emissions 98 models), there are two cats welded into the Y-pipe, and two cats behind that (4 cats total!) My 2000 Sport was set up this way.
 




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