Stepdown exhaust manifold "adapters" with pictures

[Deleted User]

Bob,

Plates arrived yesterday ---they look great---and at a bargain price no less!!

Many thanks for making these parts available again----Your performance and

product have been "A1" from start to finish.

Rich

[Deleted User]

Rich:

Thanks, appreciate the compliment. Received your US Postal mail today, Thanks, appreciate the business. Bob

[Deleted User]

Bob C.:

Your adapter left US Postal today, maybe Mon or Tues. Thanks for your business. Bob P

[Deleted User]

Will be in Atlanta, GA Fridayand Saturday for a while, moving my son to Statesboro, GA. He will need a job, anyone know of anything, send a note our way.

I will have two Hudson Dual Outlet Exhaust Manifold Adapters and plates and upper gaskets. Call me if your close and want one.

(256)762-4211 Thanks, Bob

[Deleted User]

Bob C.:

Glad to see you took delivery of your convertible and hope your adapter arrived safely. Take care, Hudsonly, Bob P



Dual Outlet Exhaust Manifold Adapters and outlet plates are available, email HETpbebop@gmail.com drop the HET. Thanks, Bob

Walt-LA

I've found an exhaust manifold that is said to have belonged to a fellow who raced Hudsons (dirt track) some years ago. The butterfly damper and shaft have been removed, as well as the heat tube for the carburetor (single 2bbl). Openings for the damper shaft are closed by brazing, and the port for the heater tube- with what appears to be a stud and acorn nut arrangement. Looks like an "aftermarket" job. Manifold bears the letters/ numbers B-24 and C S, as well as 307049, which looks like a stepdown part no., but not in '48-'54 parts manual.



Is anyone familiar with this part no.?



Without any carburetor heating it might be a bit difficult on a cold day, but we don't have all that many. Thought I might use it with Bob's adapter since the damper is already out.



Walt-LA

Ol racer

FYI

We always removed the butterfly for less restriction for the Track too. Not familar with the number, but I run a 4bbl on the Street in PA (in Season) with headers with no heat provisions and when its cool requires working the throttle a bit when first started, but its ok right after moving down the road. I would use it since you have very few cool days....Ol Racer

[Deleted User]

Well this may be my first sucessful attempt to load pics for this forum. We will see.

These are the best current pics I have made and hope you can view them.

Still $175 per adapter, $11 for 3/8 inch plate for ex pipes, if ordered together will include shipping and the upper gasket. 256-764-2492 Bob

WOW it works. HDOEMA, c/o Parks, 201 Westview Dr., Florence, AL 35633

hudsonguy

Nice looking parts!



I just wanted to mention that the other night I was looking over one of my 1:18 scale Hudson models. I think these are the 'Route 66' brand? Not sure. Anyway, the detail on these models is pretty amazing. Twin H, plug wires, etc. Right down to the 7X exhaust adapter!

[Deleted User]

We located some exhaust manifold gasket material at O'Reilly Auto Parts, but the material has metal bonded between two temperature rated "cardboard looking" sheets. I had them check the temp rating, and they said it was rated for exhaust manifolds. List $15.24, Discounted $8.99, my sheet had a bad blemish on one side, so they discounted it $3. Cost me $5.99 plus tx and it is about 12 X 24 inches. Best we could find locally. Bob

hudsonguy

It looks like McMaster Carr has some interesting stuff that could probably be used to make some gaskets;



http://www.mcmaster.com/#carbon-gaskets/=6aa2z6



Scroll down to the Extreme Temp Compressible Graphite Sheets.

[Deleted User]

An order has been placed for #8 dual exhaust manifold adapter, thanks Michael.

Currently working on my Super Six 262, removed the manifolds, wiring, plumbing to clean and paint the block, adjust valves, and install my first adapter.

Plan to take several adapters to the Central Regional meet in June. Thanks, Bob

[Deleted User]

bobdriveshudson wrote:

An order has been placed for #8 dual exhaust manifold adapter, thanks Michael.

Currently working on my Super Six 262, removed the manifolds, wiring, plumbing to clean and paint the block, adjust valves, and install my first adapter.

Plan to take several adapters to the Central Regional meet in June. Thanks, Bob

The parts have arrived, and I took them and the 52 Hornet down to my friendly local exhaust shop.



#1 There is so little room under the car, he actually would like to see pictures of how others have routed pipe.

#2 He can see no way to route pipe anywhere except to the rear passenger side.

#3 He was not happy that I did not have a gasket for the weld piece.



Can some people who have moved to dual exhaust please post some under car pictures showing how the pipe is routed?



Is there anyone producing gaskets I could just order?







Thanks :cool:

[Deleted User]

Michael:

Hope you have been able to sort these items out to make the system work for you.

On 3-18-10 I posted:"We located some exhaust manifold gasket material at O'Reilly Auto Parts, but the material has metal bonded between two temperature rated "cardboard looking" sheets. I had them check the temp rating, and they said it was rated for exhaust manifolds. List $15.24, Discounted $8.99, my sheet had a bad blemish on one side, so they discounted it $3. Cost me $5.99 plus tx and it is about 12 X 24 inches. Best we could find locally. Bob "

Though we found the material, I havent tried it yet. I returned today from a 6 day trip, so I will try find something you can use. The material I have is a sheet, and I could cut a piece off for you, but do you have a O'Reilly's near you, maybe a older parts store, or tractor/truck shop/parts store? Let me know if you locate something to use. The previous thread about pics of others running dual exhaust had some really nice pics, I have my engine block stipped to clean, adjust valves, paint and install the adapter, sooo.. I'm several days away from doing the dual exhaust pipes. We will run both exhaust out the passenger side because of the gas pipe to the tank being in the way. The 49 we have has a flat trunk floor, so more room between the tank and the springs.

Will be glad to mail you a piece of my gasket material, free of charge, if you want. Bob

[Deleted User]

Hope to arrive at the 2010 Central Regional Meet on Wed and leave Sat, safely with spouse and grandson(his first).

Planning to bring 14 dual outlet exhaust manifold adapters, plates, and upper gaskets. No planned location to sell them, just see me with a 6 year old red headed kid.

Everybody drive safely. Bob

[Deleted User]

I hope to be there with my 52 Hornet, newly fitted with the dual exhaust

[Deleted User]

Looking forward to meeting you, Michael and hearing your Hudson sound. Thanks, Bob

[Deleted User]

Arrived at the Cliffbreakers this evening, will be available to show Wed, Thur, and Fri mornings 8-10 red pickup in front of Lobby. Roads rough, everyone drive safely. Bob

[Deleted User]

I just spoke with the mechanic who is trying to install the dual exhaust adapter. He tells me that the dual exhaust adapter does not fit; is longer than the single and drops right into the suspension I am freaking out a little bit, because it never occurred to me that it would not fit, and I really want it, especially since I have money invested in the parts and labor to take it all apart :eek:



My car is a 52 Hornet, Twin-H, standard exhaust manifold.



Can someone please snap a picture of the dual exhaust adapter bolted on?

Any suggestions?



Just to add insult to injury, they snapped a bolt on the old exhaust adapter taking it out and it looks like they will have to take off the exhaust manifold to fix it. In other words, the bill keeps going higher, and in the end, I may have nothing to show for it :mad:

[Deleted User]

After talking to the mechanic and brooding for awhile I drove over there to see it for myself. The new dual exhaust manifold is easily 3x larger in length than the original. As such it takes up nearly the entire space, and in my case collides with a grease fitting.



Here are a few pictures of the spot. http://picasaweb.google.com/mjsandbe/DualExhaustAdapter?feat=directlink



The dual exhaust adapter will not fit, because it takes the same space as the grease fitting for the wheel. Why am I the first to run into this? Suggestions?



Attachment not found.

Richie

Michael, I put mine in and also found the grease fitting was in the way, so I removed it and put a plug in its place. That done, everything cleared OK. Mine has been on for about two months I think and all is well. I know what you are going to say, so I'll tell you now. When I grease the car I put a little pressure on that side of the engine and raise it a bit. I remove the plug and put the fitting back in and grease away.!! I reverse that procedure and I'm done. The whole grease job takes about 20 minutes. I like the sound of my duals so the little extra time is no problem for me. I'll try and find my pics and post them. Richie.

This pic is with the plug installed, has enough clearance. I hadn't been to the muffler shop at this point as you can see my temporary hook-up. I also removed the flapper from inside the manifold.

[Deleted User]

Richie:

Thanks for posting about your installation. I talked to Dr Doug about the adapter installation, and he suggested that we should install new front motor mounts and a new transmission mount, as sometimes the old mounts tend to compress, lowering the engine, causing your type of problem. If your mounts are new, we will continue to look for better ideas.



Michael:

I responded to your email. You may be able to have your mechanic drill out the broke stud and put a bolt in from the bottom(adapter side) with the nut on top. Just a suggestion. I removed my manifolds like Richie did, a tough job but made the job easier to loosen the nuts. Sometimes they are so tight and frozen that a nut cracker may be needed or a tool that Dr Doug has from Snap On($200) to free nuts/studs. We have taken two manifolds off our engines and only one didnt break the studs, the other one broke two studs. I was too impatient and didnt soak the studs/nuts long enough.

Consider removing the exhaust damper before installing the adapter.

Good luck, thanks, Bob

Richie

bobdriveshudson wrote:

Richie:

Thanks for posting about your installation. I talked to Dr Doug about the adapter installation, and he suggested that we should install new front motor mounts and a new transmission mount, as sometimes the old mounts tend to compress, lowering the engine, causing your type of problem. If your mounts are new, we will continue to look for better ideas.



Michael:

I responded to your email. You may be able to have your mechanic drill out the broke stud and put a bolt in from the bottom(adapter side) with the nut on top. Just a suggestion. I removed my manifolds like Richie did, a tough job but made the job easier to loosen the nuts. Sometimes they are so tight and frozen that a nut cracker may be needed or a tool that Dr Doug has from Snap On($200) to free nuts/studs. We have taken two manifolds off our engines and only one didnt break the studs, the other one broke two studs. I was too impatient and didnt soak the studs/nuts long enough.

Consider removing the exhaust damper before installing the adapter.

Good luck, thanks, Bob

You are welcome Bob, and my motor mounts are very old and are part of the problem if not the whole problem. I think new motor mounts would raise the engine enough to clear the fitting. I aimed the fitting downward at first and it almost was OK, but not quite. I will put new mounts in when I get tired of changing the plug and fitting.

[Deleted User]

Thank you all for the help. I will be chatting with my mechanic on Monday.

Who sells new motor mounts and how big a job is it to install them?

Why would I remove the exhaust damper?



I hope to end the story with success, but not being there yet, all I can do is hope, gather information, and push for success.

[Deleted User]

Michael:

Motor mounts: check with Dale Cooper, K-Gap, others that may be WTN listed

Transmission Mount: check with K-Gap and others " " " " " "

Secure vehicle to prevent movement, electrical shorts, etc(check motor manual)

Loosen motor mount bolts/trans mount bolts, thick board between the floor jack and the oil pan to jack the engine a few inches to remove/replace the trans mount FIRST. Then remove/replace the engine mounts.



The exhaust damper restricts and reduces exhaust air flow from the engine. As one Hudsonite explained, if you live in Alaska(or that far north) you may need the damper. Just plan to warm the engine a couple of minutes each time you use it during the cold season.

If you can find someone with an exhaust manifold off the engine, get them to let you see it, with the lower part of the manifold removed, like yours is now. Notice the way the damper moves and how the air flow moves around the damper. Either way the air goes, it is restricted and the damper doesnt allow maximum air flow.

The simplest, and we think the easiest way to reduce the restriction and keep the original look, is to trim the damper plate from the shaft leaving the shaft as is.

We are sure others have opinions and suggestions about these methods and products, please consider all before making your decision. Thanks, Bob

RL Chilton

Hi Michael!

Bob pretty much laid it all out for you all ready.

Don't sweat it, that bolt can be drilled out and then replaced with a bolt, lock washer and nut, simple affair and you don't have to pull the engine to do it (a lift helps).

By all means, consider removing the damper. Walt would tell you to take it and chunk it as far as you can once removed, I guarantee it.

Check your engine mounts, if they look like round, flattened donuts, then replacing them will gain you probably an inch at the mounts, a little less further back on the engine, but might solve the height problem.

Lastly, I don't know how Bob got his mold for the exhaust outlet, but if he made a copy of a copy (the last run of outlets), then the following might be of interest. I have one of the re-pops made the last time around, and it did not fit onto the exhaust manifold. It was close, and the solution was to drill the holes on the outlet a little larger than they came. The bolt pattern on the manifold was slightly larger layout than the bolt pattern on the split outlet. Drilling the holes gave it enough room to slip on. Don't know if this is an issue, but just a thought.

Finally, keep in mind that changes (and old cars in general) always seem to develop unforeseen problems. Keep it all in perspective. Some problems are really problems, others are simply opportunites for excellence.

[Deleted User]

Thank you all again for your advice and kind words. I will be talking to my mechanic tomorrow about all of this, with the knowledge you have armed me with. In addition to my inexperience, I believe part of my problem is that while he is good, my mechanic thinks everything needs a Chevy V8, and he just can't understand why a dual exhaust should go on my 6. When it did not fit at first, he laid out a plan for a fake dual exhaust, split right before the tail pipes. He is the best local talent for old cars, but I feel like I have to keep reminding him of what I actually want.

[Deleted User]

Russ:

Thanks for commenting and providing info to Michael and the rest of the forum about the adapter installation.

The moulds that we have were used by Danny Barrier and later purchased by Mark Hudson. We purchased those moulds from Mark and have had the same foundry Danny used to recast the last adapters we are now selling.

We have sold 9 adapters since the first of this year, still have 11 available.

If anyone interested PM or email. hetpbebop@gmail.com remove the het

Thanks, Bob

Clutchguy

Hi Bob,glad to see you made it back home safely. The adapters you have repro-ed are great. I'm sure there are alot of Hudnuts,myself included, that are greatful that you reproduced these again. I had a GREAT time talking with everyone,looking at and buying parts. The HET cars just continue to get nicer and nicer, too many to list that were there!!. CG

[Deleted User]

CG:

Thanks for the comments and your right, the Central Regional Meet was a good one and we also enjoyed it, think my wife spent all Fri shopping.

A good flea market, forgot to buy some of your stuff, maybe later. Thanks, Bob