Need some spacer info

[dicor]

Need some riser/spacer info

I plan to replace my exhaust system this season and got a good price on a pair of genuine Merc. manifolds. Last season I measured the dimension of the spacers needed and wrote it down so I wouldn't forget but being over 50 I cannot remember where I put it.:smt101 I think it was 4" but not 100% certain. My boat is 1 1/2 hrs away and wrapped. If anyone has the correct spacer dimension I would appreciate it. I have a 1998 270 DA with a single 7.4. Thanks in advance.

 

[dicor]

bump

 

[susanandlance]

I would say 3", based on a check w/EBasicpower.com. That is if your talking height and not exhaust size.

 

[dev6315]

I will be by the boat tonight, I will take a measurement of mine. I know they were either 3" or 4". I am leaning towards 4".

 

[dicor]

Thank You

 

[dev6315]

Susanandlance was correct. It is a 3" spacer. Make sure if you have a remote oil filter, that two of the studs are longer to except the bracket thickness if you aren't re-using the old studs. I needed to use some tempered all-thread to make my front two studs work with he oil filter bracket. Sorry the picture isn't more clear, lighting wasn't great last night.

 

[boatrboy]

I don't know for sure on your boat but mine are 6" and we basically have the same boat. Take a look at my pics of the motor and if it looks familiar, they are probably 6".

http://clubsearay.com/showthread.ph...-the-table-storage-bracket?highlight=boatrboy

Mark

edit - added link 1998 and 1999 seem to have the same exhaust according to this website where I buy my merc parts.

http://www.perfprotech.com/store/Catalog/Mercruiser-Parts-Finder,3172.aspx

 

[dicor]

I believe your right. I had them off lass season and thought they were more than 3" but couldn't swear. After looking at the pictures you posted I realize mine are the same as yours and more like 6".