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201 Diesel exhaust manifold

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03-30-2016 04:18:41

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Quick question, well 2 questions.

1) Those goofy little lock tab washers listed on the CNH parts site for the exhaust manifold bolts, does anyone use those or is there a more cost effective option. The dealer wants $2.15/ea. Not a lot of cash but if a regular lock washer works well then the cash is better off in my pocket.

2) What would be a good way to remove the exhaust manifold bolts without breaking them off? I haven't tried yet but I don't want to make a chore out of it if at all avoidable.


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03-31-2016 07:17:29

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 Re: 201 Diesel exhaust manifold in reply to Rustytractorguy, 03-30-2016 04:18:41  
I always use the exhaust bolt lock tabs.... but then again, I always buy the full upper gasket sets which are about the same money as buying a couple gaskets individually... and the locks are in the set.


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Ultradog MN

03-30-2016 05:09:28

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 Re: 201 Diesel exhaust manifold in reply to Rustytractorguy, 03-30-2016 04:18:41  
The manifold bolts get really come out of the head quite easily. I've had a couple that the heads were so corroded away that a wrench wouldn't fit on them anymore so I cut them off with a grinder. But the bolts always unscrewed from the head with no problem.
As for the lock washers, wow I wish I could get those kind of prices.
Just put ordinary lock washers on and forget about them.

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03-30-2016 05:29:29

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 Re: 201 Diesel exhaust manifold in reply to Ultradog MN, 03-30-2016 05:09:28  
Thanks for the advise! I hope my bolts too come out easily, when I get around to it.

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03-30-2016 10:30:32

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 Re: 201 Diesel exhaust manifold in reply to Rustytractorguy, 03-30-2016 05:29:29  
agree with UD.

generic lock washers fine.

as for the head and bolts /studs.

remember.. the head is soft.. studs or bolts were probably grade 5-8

hit them with penetrant, use a drift and give a smack square on the head with a drilling hammer.

they should come off.

if they act stuck, don't use a long hard pull with a breaker bar, but instead use an impact wrench.. set it soft and let it hammer lightly, then gradually turn the air up. Sometimes you can tighten a second, spray more penetrant, then loosen.

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03-31-2016 09:48:49

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 Re: 201 Diesel exhaust manifold in reply to soundguy, 03-30-2016 10:30:32  
Do you anti-seize on reinstall? I'd venture to say yes.

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