| Author |
Message |
    
Brett Gottdener
| | Posted on Wednesday, April 17, 2002 - 02:32 pm: | 
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I beleive I need to replace my exhaust manifold gaskets. I have a 4.2 in RR. So I simply spray the bolts with liquid wrench and then remove all of the bolts, then slide (?) in the new gasket and rebolt. What do I do if a bolt breaks? Should I order new bolts with the gaskets? I just need some confidence to step into this project.
Thanks,
Brett Gottdener
94 RRC LWB |
John C.
| | Posted on Wednesday, April 17, 2002 - 02:44 pm: |
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Brett, I believe there are some locking plates between the bolt and the manifold. Order new ones if ours are too rusty. Make sure to put some anti-seize on the bolts when reassembling.
Fortunately my bolts were a little loose when I did my head gaskets (88 RRC), I hope yours are also.
Good luck and keep us posted. |
Brett Gottdener
| | Posted on Thursday, April 18, 2002 - 10:00 am: |
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Is this what I need? They say "gasket for exhaust manifold to pipe" Is this the gasket for between the block and the exhaust manifold?
Thanks,
Brett Gottdener |
PerroneFord
| | Posted on Thursday, April 18, 2002 - 10:47 am: |
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You're talking about the gasket on the "Y-pipe" where it connects to the exhaust manifold/headers. Piece of cake job usually unless one of the studs breaks. Otherwise it's pretty easy.. Use plenty of penetrant on the studs, but spray from below.
You'll understand why this is a PITA job after you do it.
-P |
John C.
| | Posted on Thursday, April 18, 2002 - 11:46 am: |
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No, I believe that's the gasket between the manifold and the cats. You want item number 5 (RN catalog).
Gasket |
PerroneFord
| | Posted on Thursday, April 18, 2002 - 11:57 am: |
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John C.,
Did you read his last post?
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They say "gasket for exhaust manifold to pipe"
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The part you outlined in that diagram is not what he just said he needed.
-P |
John C.
| | Posted on Thursday, April 18, 2002 - 02:49 pm: |
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P, check out his first post. He started asking about the manifold gasket and bolts. As you know there are studs on the end of the manifold that connects to the cat pipes. |
John C.
| | Posted on Thursday, April 18, 2002 - 03:03 pm: |
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>Is this the gasket for between the block and the exhaust manifold?
My intention was to show him what the gasket between the block and the manifold looks like. If he has to replace the gasket between the manifold and the exhaust pipe then obviously it's another gasket. I replaced the gasket between the manifold and the exhaust pipe thinking that was were my exhaust leak was from. It wasn't, it was from the block/manifold gasket. |
PerroneFord
| | Posted on Thursday, April 18, 2002 - 03:08 pm: |
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I understand you... His posts led me to believe he had been to a dealer or something and they were telling him what he needed fixed.
I'd would be helpful if he could clarify exactly where the leak is! 
Brett??
-P |
John C.
| | Posted on Thursday, April 18, 2002 - 03:19 pm: |
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I'm glad you understand me because nobody else does.....
I'm betting his exhaust leak is between the block and the manifold... I would probably try tightening the bolts first (have to move to bend the locking plates first) on the manifold/block.... but hey, that's just me. |
Brett Gottdener
| | Posted on Thursday, April 18, 2002 - 05:15 pm: |
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Ok this is funny, I need the gasket between the engine block and the pipes/headers/manifold leading from the engine. Do they look like this?
http://www.roverparts.com/product_list.asp?c=&sc1=%2D+All+%2D&c1=%2D+All+%2D&type=&v=&r1=ALL&a1=ON&d1=ON&i1=ON&p1=1&Bookmark=24
Thanks,
Brett Gottdener |
Brett Gottdener
| | Posted on Thursday, April 18, 2002 - 05:22 pm: |
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I haven't been to the dealer, and I don't know if the gaskets have been replaced. I have 153k miles now. It was dealer babied till 115K. From then on it's been partially "dealered." The engine sounds loud/tractor like/ticking on the right/passenger side bank, but I think it's just time to replace the gaskets anyway. I don't actually know where the leak is.
Thanks guys,
Brett Gottdener |
John C.
| | Posted on Thursday, April 18, 2002 - 06:36 pm: |
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Ok Brett, here is the gasket that goes between the exhaust manifold and the cylinder head:
manifold gasket
You probably should get new locking plates and at least 2 new bolts in case you break one or two. The tricky part is getting the manifold with the gasket + locking plates + bolts back on. I guess if you break a bolt you will have to drill it out???? I'm guessing only...
Did I get it right this time??? |
PerroneFord
| | Posted on Thursday, April 18, 2002 - 11:04 pm: |
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sound good John!
I would add a few things.
1. Have the exhaust bolts sized when you get them out and replace them with good quality hardware
2. Instead of common anti-seize when you put the new ones in, get some nickel based that won't break down under the extreme heat. They are usually good to 2200-2400F unlike common anti-sieze which gives up at 1200F.
3. You may want to invest in a quality set of screw extractors in advance. Cheaping out on these is NOT a good idea.
Good luck!
-P |
Ron
| | Posted on Friday, April 19, 2002 - 04:32 am: |
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There is almost no way to get a drill and an extractor on one of those bolts if it breaks. If you lose one you are generally screwed and have to pull the head.
DO NOT REUSE THE OLD BOLTS!
cheap piece of mind to replace them
Ron |
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