Help 2000 290 Sundancer manifold help

[Ragtopman]

Hi, I have a 2000 Sea Ray 290 Sundancer with twin 5.0L EFI motors and Bravo 2 drives. I need to replace the exhaust manifolds and risers. I have 2 spacers between them. The standard 3" which is easy to find and a 1 or maybe 1 1/4" spacer. I connot find any information on the smaller spacer. Could anyone help me with this?

 

[SteveRuss]

never saw a two spacer setup on that motor unless someone was trying to do a wet joint to dry joint conversion. can you include a photo of the current setup?

Ebasic power has a 1-1/4" riser spacer listed for a wet joint setup. MER8M0063742, $139.95.

 

[Ragtopman]

 

[Ragtopman]

 

[Ragtopman]

I think I found this if anyone else is looking merc part 17833A-1

 

[Sarges12]

I realize this is an old thread but, were you able to locate the smaller spacer? I have a 2001 290 with the same setup. 5.0L EFI I’ve researched everywhere for that spacer without success. Not sure what my options are. Someone suggested I see if I have room under the hatch for a 6” spacer. Not sure how that will work height wise hooking up to the exhaust pipe.

 

[AJSB]

FYI. If you’re replacing and need or want risers I have 2 pair that were installed and used on my boat for less than 2 seasons and 130 or so hours. Paid $225+ per pair and they’re in great shape. Part #865953-C DSM PM if interested.

 

[Bill McCarthy]

I just ran into this problem. I have a 2000 290 Sundancer and am in the middle of manifolds and risers. I had the smaller spacer made at a machine shop. Give me a call if you need some help. 978- 836-8084. Bill

 

[Sarges12]

I just ran into this problem. I have a 2000 290 Sundancer and am in the middle of manifolds and risers. I had the smaller spacer made at a machine shop. Give me a call if you need some help. 978- 836-8084. Bill

Thank you for your reply. I was extremely lucky after hitting many area marinas. One actually had all 4 small spacers I needed. Of course they were very expensive! I think they knew they are obsolete.

Thanks again.

 

[Bill McCarthy]

You are lucky. I spent 8 hours calling every SeaRay and Mercruiser dealer with no luck. I had them made out of stainless for $300 a piece, double the price.

 

[Sarges12]

You are lucky. I spent 8 hours calling every SeaRay and Mercruiser dealer with no luck. I had them made out of stainless for $300 a piece, double the price.

WOW! I thought $150 each was bad.
I did contact Merc and spoke to a tech. He told me everything he has on my boat and motors indicates I only needed the 3” spacer. He had nothing showing that the 2001 290 needed extra spacer. But, I didn’t want to take a chance and go with just the 3”. So when she was hauled for the winter, she got all new risers, manifolds and spacers. I’m good for hopefully 5 yrs.

 

[Bill McCarthy]

I have friend who worked as a mechanic at a SR dealer in the early 2000's and said he knew about the issue. SeaRay added the 1 1/2 inch riser due to ingestion issues. I was told the same thing, it came from the factory with a 3 inch only.

 

[Sarges12]

Then some company needs to make the smaller spacer. I’m sure there’s plenty of 290’s out there needing riser/manifolds.

 

[Ragtopman]

I found the part it is listed and still available from mercury marine the part number is 17833A-1 My last post has the parts diagram took me hours to find but they worked perfectly.

 

[Jersey Mike]

WOW! I thought $150 each was bad.
I did contact Merc and spoke to a tech. He told me everything he has on my boat and motors indicates I only needed the 3” spacer. He had nothing showing that the 2001 290 needed extra spacer. But, I didn’t want to take a chance and go with just the 3”. So when she was hauled for the winter, she got all new risers, manifolds and spacers. I’m good for hopefully 5 yrs.

WOW! I thought $150 each was bad.
I did contact Merc and spoke to a tech. He told me everything he has on my boat and motors indicates I only needed the 3” spacer. He had nothing showing that the 2001 290 needed extra spacer. But, I didn’t want to take a chance and go with just the 3”. So when she was hauled for the winter, she got all new risers, manifolds and spacers. I’m good for hopefully 5 yrs.

The short spacers seemed to appear with the addition of b3 outdrives and Generator’s. They sit considerably lower in the water than b1 boats. They are important.

 

[Sarges12]

I found the part it is listed and still available from mercury marine the part number is 17833A-1 My last post has the parts diagram took me hours to find but they worked perfectly.

I was fortunate to find 4 sitting on a shelve in a local marina over the winter. But today checking the number you list 17833A-1, every website I see says it’s unavailable. I’m just looking to possibly get another set for the future.

 

[Handsome Transom]

I feel bad for the salt water guys needing to replace these parts all the time. I believe my manifolds risers and elbows are original to my 89 and no signs of needing replacement.