Weber carb linkage pics...

[Bigbunt]

Very interesting. It makes sense that they wouldn't have gone through the effort of setting the manifold up for heat if it didn't do any good. Guessing that most people (possible false assumption) don't do it because it seems like a lot to go through when you don't live in a sub-arctic environment. Also complicates the engine compartment... But if Smokey says yes then that's something!

Yet another cool little afternoon job... Thanks!

[Faust]

I ran my car for a few months before I plumbed the manifold heat pipes in place.

It didn't run that badly, but it certainly seems 'happier' with the pipes in place,so I'd certainly recommend going to the effort...

[Darel]

Whereb are you guys plumbing them "from" and "to"? Also, did you need to change your carb setup afterwards at all?

[Faust]

Originally Posted by Darel

Whereb are you guys plumbing them "from" and "to"? Also, did you need to change your carb setup afterwards at all?

My kit came with an adaptor to take a water feed from the front of the head (where the blanking plate is held in with 2 bolts), through the base of the manifold and then on to one of the hoses at the bottom heater control valve (HCV). A 'T' piece adaptor was supplied to splice it in to the bottom (HCV) hose (I think!).

As I wasn't sure I was going to keep the set up, I ran a hose from the front of the carb to the bottom of the HCV and another from the back of the manifold to the rear of the cylinder head. The idea is to plumb the hoses in sequence with the water flow.

This set up is not ideal and I will plumb it in using the 'stock' method using stainless braided hose to match the rest of my engine bay at some point… but it works and I've had no leaks so I've left it alone for the moment (and there is always something more pressing to deal with on a 45 year old daily driver!).

If you use Google images you will get a better idea… there is one car in particular on which the setup is nice and clear (a white Amazon with air con fitted IIRC).

[nonhog]

Mine is a work in progress. I have a spare shaft bracket and understand its not set up well. Thought I mentioned that but turns out that was on a different site. Good eye!

Glad the water heating was mentioned, think I'll look into that also.
Like to get it as good as possible till the rebuild or swap. (still undecided)

I just love the B20 sound....... https://www.youtube.com/watch?v=zz82IHUDeds

[Darel]

Faust,

Found the white Amazon you mentioned. Not much connection detail in those pics, plus since it's an Amazon it doesn't have an HCV. Either way, I get it, no problem.

I don't get the blanking plate on the front of the head...I have a couple of core plugs, that's about it. Do you have a B20 maybe?

Did you have to do any more adjustments or setup work on your carb after running the heater lines, or did it pretty much stay where it was?

Thanks,
Darel

[Faust]

Originally Posted by Darel

Faust,

Found the white Amazon you mentioned. Not much connection detail in those pics, plus since it's an Amazon it doesn't have an HCV. Either way, I get it, no problem.

I don't get the blanking plate on the front of the head...I have a couple of core plugs, that's about it. Do you have a B20 maybe?

Did you have to do any more adjustments or setup work on your carb after running the heater lines, or did it pretty much stay where it was?

Thanks,
Darel

Yep, got a B20 in my Amazon.

Look at your cylinder head: under the thermostat housing on the exhaust side/inlet , you will see an almost diamond shaped blanking plug held in with 2 bolts - think both the B18 &20 head had them fitted. You can buy an adaptor which bolts in and then has a hose attached to it (this will give a more direct feed to the manifold heater and eliminate the loop of hose that I have).

Here's an old ebay add for one of the blanks so you can what I'm on about.

Didn't have to make any further adjustments to my carb once I'd plumbed the hoses in...

Mike

[Darel]

Aha! Gotcha, On my 1800S I don't have a blanking plate, I have a coolant hard pipe that runs to the back of the engine, then connects to one of the hoses coming off the HCV.

So I would remove this hard pipe entirely, and run a hose from it, through the manifold, onto the HCV port that would now be missing a hose. Got it!

Thanks!

D

[Derek UK]

Originally Posted by Darel

Aha! Gotcha, On my 1800S I don't have a blanking plate, I have a coolant hard pipe that runs to the back of the engine, then connects to one of the hoses coming off the HCV.

So I would remove this hard pipe entirely, and run a hose from it, through the manifold, onto the HCV port that would now be missing a hose. Got it!

Thanks!

D

The pipe you're describing actually comes out of the water pump and then goes to the back. The 2 bolt plate is a bit above that connection, on the head, and is close up to the exhaust manifold. Someone correct me but I think the flow in that pipe is back to the pump and not flowing at all unless the heater valve is open.

[Bigbunt]

http://www.cascadiaclassic.com/1966Volvo122-YG50.JPG

I thought I knew how to plumb the manifold from the pic that I've attempted to post here of a car from Cascadia last year. I believe it was the infamous $36k sale that turned into an $18k sale. They didn't plumb from that blanking plate but rather used a big loop of heater hose that made me shy away from doing or even considering it. Now that the blanking plate connection is out there to consider I really need a picture or at least a description of effective routing based on this picture? Need to do it right once and for all...

This is getting very interesting.