OK to cap coolant port on rear intake side of block?

[man_mark_7]

Sorry for this cross-post. I posted this in the DCOE install FAQ, but the FAQ pages don't seem to pop up in the normal feed? I will post whatever answers I may get here back into the FAQ thread. So, my question:

 

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I'm installing DCOE 40s. I have the IE water bypass to go from the back of the water pump to one side of the heater core. I just noticed there is a port on the back end of the block that used to route to the old intake manifold. Is it OK to just plug this port? I don't want to create any hot-spots on the block!

 

thx

Mark

 

 

[halboyles]

Yes it can be plugged.  That port is used for the water choke on down drafts.

Edited September 27, 2020 by halboyles
typo

[WhoIsSea10]

How exactly would you cap that off? I'm in the process of installing a dual carb with the coolant bypass pipe. Not sure what to do with this thing.

[jimk]

34 minutes ago, WhoIsSea10 said:

How exactly would you cap that off? I'm in the process of installing a dual carb with the coolant bypass pipe. Not sure what to do with this thing.

Single barrel carb'd engines had a manual choke and this port was not used.  So BMW put a straight threaded plug with a crush washer in there. 

[Buckeye]

43 minutes ago, WhoIsSea10 said:

How exactly would you cap that off?

 

9 minutes ago, jimk said:

Single barrel carb'd engines had a manual choke and this port was not used.  So BMW put a straight threaded plug with a crush washer in there. 

Item 3 & 4

 

[WhoIsSea10]

so, i should unscrew the port on there and plug it?

 

[Son of Marty]

Unless you can come up with a better way.

[WhoIsSea10]

only reason i question it is because mine seems to have been there since the start of time. going to be a mission to get it off

[Son of Marty]

Penetrating oil and heat along with a good six point socket and a breaker bar should get it.

[kbmb02]

M10x1.5 x 10mm (long) bolt will work.

[Mike87]

Depends on your bypass tube. Some have a small nipple on them for the return of the water choke. If yours does the run a hose from that to the nipple on the block.

[WhoIsSea10]

I have the IE bypass kit. Don't think that design has that. just runs to the firewall (heater core I think)

[jimk]

Hang onto the nipple fitting if you remove it.  From time to time there are WTB FAQ'ers looking for them.

Edited December 13, 2020 by jimk

[TobyB]

Quote

Hang onto the nipple fitting 

 

This advise is only advised between consenting adults.

 

t

no piercings here

[ray_]

52 minutes ago, TobyB said:

 

This advise is only advised between consenting adults.

 

t

no piercings here

Well. We all have our vises.