Dorman exhaust manifolds, anyone use them?

rusty1161 · Aug 23, 2012

I need to replace my manifolds. Does anyone else have experience with them?

Thank you.

Rusty

SICKS LITER · Aug 23, 2012

i have, nice product, fit perfect and have not came back on me

rusty1161 · Aug 23, 2012

Great, thanks for the info.

Rusty

rusty1161 · Aug 26, 2012

Just ordered this http://www.amazon.com/gp/aw/d/B000C14H74/ref=mp_s_a_1?pi=75x36&qid=1346006202&sr=8-1 I will post how the install goes. The one I got had free shipping, too. With the gasket and uppipe bolts/nuts included it's a pretty fair deal.....hopefully.

Rusty

rusty1161 · Nov 4, 2012

I finally got the driver's side manifold replaced. It took two hours, start to finish. I love living on the west coast, no salt on the roads! None of the bolts were stuck. The uppipe was leaking at the joint, ironically that was rusted/deteriorated and causing the leak and three of the four cylinders were leaking. First start up and I could hear a difference. The passenger side is next.

The Dorman manifold is well made and appears to be the same thickness as the OEM. Weight felt the same and all of the holes lined up fine. It's a good alternative to OEM if you are looking to save some money.

Rusty

rusty1161 · Nov 7, 2012

The truck is so much better with the leaks fixed. It's amazing The difference this makes. Check your manifolds and up pipes!

Rusty

mandkole · Nov 13, 2012

nice-- I'm sure some strange little ticks are coming from leaky manifolds. If and when the clutch comes out, exhaust plumbing upgrades are goin in...

2000wa250 · Nov 14, 2012

Hmm....I've had what I thought was an exhaust leak for awhile because of the tick tick tick sound at low throttle cruising speeds....when I looked I didnt see anything. How did you know yours were leaking? And how's the quality on the dormans?

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rusty1161 · Nov 14, 2012

2000wa250 said:
Hmm....I've had what I thought was an exhaust leak for awhile because of the tick tick tick sound at low throttle cruising speeds....when I looked I didnt see anything. How did you know yours were leaking? And how's the quality on the dormans?

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To find the leaks look for soot at the joints.

Quality is good.

Rusty

2000wa250 · Nov 14, 2012

That's what I'm saying by saying I looked at them....might because my block is dirty as **** though. .

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jstann · Nov 22, 2012

what did u pay for the manifold ? did it come with all the gaskets ?

mandkole · Nov 22, 2012

Stock manifolds don't have gaskets, correct? if the stocker is flat and no issues otherwise, wouldn't they seal with just gaskets?

backwoodsboy · Nov 29, 2012

2000wa250 said:
That's what I'm saying by saying I looked at them....might because my block is dirty as **** though. .

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You could also check the manifolds at cold start. Depending on how cold it is, disable to GPR. If you have a leak you should be able to see puffs of white smoke from where the manifolds mate to the block, or up-pipe to manifold junctions.