72morph Posted August 3, 2021 Report Share Posted August 3, 2021 Screwed into exhaust on a P15 . Quote Link to comment Share on other sites More sharing options...
Mark D Posted August 3, 2021 Report Share Posted August 3, 2021 Here’s a guess, maybe somebody tried to put an exhaust whistle under the hood? When they sold the car they removed the whistle and installed the cap. 3 Quote Link to comment Share on other sites More sharing options...
knuckleharley Posted August 3, 2021 Report Share Posted August 3, 2021 I think Mark D is probably right. I have never personally seen one of those things,but I remember that "a exhaust-operated Wolf's Whistle" seemed to be popular in the JC Whitney catalogue when I was a kid. In all these years,I have never actually seen one that was installed,though. 1 Quote Link to comment Share on other sites More sharing options...
ChrisMinelli Posted August 3, 2021 Report Share Posted August 3, 2021 Man that is a deep dive if that’s what it is. Does a wolf whistle keep deer (supposedly) out of your way? I remember my grandpa used to swear by the air powered version of those. Quote Link to comment Share on other sites More sharing options...
72morph Posted August 3, 2021 Author Report Share Posted August 3, 2021 Maybe to get Little Red Riding Hood's attention ? Quote Link to comment Share on other sites More sharing options...
Eneto-55 Posted August 3, 2021 Report Share Posted August 3, 2021 I have no idea, and have never seen anything like that on an exhaust manifold, but is it possible that police cars had sirens that ran off of the exhaust? Quote Link to comment Share on other sites More sharing options...
chrysler1941 Posted August 3, 2021 Report Share Posted August 3, 2021 11 hours ago, knuckleharley said: exhaust-operated Wolf's Whistle The Hollywood Wolf whistle were vacuum operated 4 Quote Link to comment Share on other sites More sharing options...
RobertKB Posted August 3, 2021 Report Share Posted August 3, 2021 I have a pretty good idea what it is. It’s either a thingamajig or a doomahicky. Outside chance of a doodad. ? Someone on the forum always has the answer. ? Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted August 3, 2021 Report Share Posted August 3, 2021 I would think a photo from the side and below to go with the one show top only would be beneficial..... Quote Link to comment Share on other sites More sharing options...
72morph Posted August 3, 2021 Author Report Share Posted August 3, 2021 Ok here ya go,side view Quote Link to comment Share on other sites More sharing options...
greg g Posted August 4, 2021 Report Share Posted August 4, 2021 It's the pop off valve for the turbo entabulator! 2 Quote Link to comment Share on other sites More sharing options...
Loren Posted August 4, 2021 Report Share Posted August 4, 2021 In the 1970s I had a 49 Special Deluxe Two door as a second car. Loved that car! Anyway my Dad who drove it a lot put one of those wolf whistles on it and found it made dogs crazy! He would terrorize folks at stop lights who had dogs in the car. They would jump from the front seat to the back and cause all sorts of hate and discontent. My Dad had a unique sense of humor. I limited myself to the growl the transmission made when you worked the clutch. Apparently there was a bearing that was bad. It was loud enough it got the attention of other drivers (and Dogs) even with the windows up. The ears would go up but no hysterics. Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted August 4, 2021 Report Share Posted August 4, 2021 I also had a wolf whistle. Went on the intake. Sure affected the engine smoothness. The Cow horn I also had was a lot more fun. Especially with a herd of cattle coming at ya! Quote Link to comment Share on other sites More sharing options...
chrysler1941 Posted August 4, 2021 Report Share Posted August 4, 2021 The thang looks like heater disburse (is that a correct word?) Maybe added a tube connected to interior fan like VW to draw in heated air. Quote Link to comment Share on other sites More sharing options...
DonaldSmith Posted August 4, 2021 Report Share Posted August 4, 2021 (edited) Lessee, a wildass guess- It's on the exhaust manifold, so we don't want it to release exhaust into the engine compartment. So maybe it lets air into the exhaust system? There may be a valve under that dome. maybe the finned shaft is to disburse the exhaust manifold heat, to avoid overheating the valve mechanism. To quote my 2-1/2-year-old neighbor boy, "Why?" Why introduce air into the exhaust stream? Even out the pulses? Edit: Boost your gas mileage? Extend you r oil change interval? Edited August 4, 2021 by DonaldSmith Quote Link to comment Share on other sites More sharing options...
JBNeal Posted September 5, 2021 Report Share Posted September 5, 2021 On 8/3/2021 at 8:47 AM, 72morph said: Screwed into exhaust on a P15 . On 8/3/2021 at 4:33 PM, 72morph said: Ok here ya go,side view Those fins and proximity to the fan and carburetor make me wonder if this is a heat sink to dissipate heat away from the carburetor to prevent fuel percolating... Quote Link to comment Share on other sites More sharing options...
hkestes41 Posted September 8, 2021 Report Share Posted September 8, 2021 Wonder if it would be covered under the extended warranty those people in India keep calling you about? 1 Quote Link to comment Share on other sites More sharing options...
knuckleharley Posted September 8, 2021 Report Share Posted September 8, 2021 On 8/3/2021 at 8:18 PM, greg g said: It's the pop off valve for the turbo entabulator! LUV them turbo entabulator's! I understand once you get one of them tuned right,they are good for an extra 100 hp! They had to quit making and installing them in the 50's because they were breaking axles on takeoff and gear shifts. Quote Link to comment Share on other sites More sharing options...
Eneto-55 Posted September 8, 2021 Report Share Posted September 8, 2021 How much pressure would you get on the exhaust like that, if, say, it was a connection for an air hose, to air up tires? Would it be enough? (I assume that others here have seen the air hose you could connect (temporarily) in place of one spark plug. That's what made me think of this now. I hadn't looked back at this thread since before the side view photos were posted, and those fins look like they're designed to reduce heat.) Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted September 8, 2021 Report Share Posted September 8, 2021 unless you could plug the exhaust pipe...this larger opening would not allow any significant pressure...the spark plug access will allow you to build pressure on compression. Quote Link to comment Share on other sites More sharing options...
knuckleharley Posted September 8, 2021 Report Share Posted September 8, 2021 33 minutes ago, Plymouthy Adams said: unless you could plug the exhaust pipe...this larger opening would not allow any significant pressure...the spark plug access will allow you to build pressure on compression. Back when I was a kid and my family were beach fishing with nets,we used to have a device we could screw into the head of our truck in place of a spark plug,and then then start the truck and pump up the tires after coming off the beach. Had a long rubber hose with connectins on both ends that would screw into the device in the head and the tube. Quote Link to comment Share on other sites More sharing options...
busycoupe Posted September 8, 2021 Report Share Posted September 8, 2021 I always wondered if those connections to where a plug was removed would fill your tire with gasolene vapor. Would the rubber in the tire be damaged? Would it be an explosion hazard? Quote Link to comment Share on other sites More sharing options...
Sniper Posted September 8, 2021 Report Share Posted September 8, 2021 I already got one of those, it's called a compression tester hose. One end screws into the spark plug hole, the other end will allow you to hook up an air hose. Schrader valve in the adapter hose makes the air flow one way. Quote Link to comment Share on other sites More sharing options...
T120 Posted September 9, 2021 Report Share Posted September 9, 2021 7 hours ago, knuckleharley said: Back when I was a kid and my family were beach fishing with nets,we used to have a device we could screw into the head of our truck in place of a spark plug,and then then start the truck and pump up the tires after coming off the beach. Had a long rubber hose with connectins on both ends that would screw into the device in the head and the tube. Schrader marketed a kit. It came in a metal box - "Schrader" Spark Plug Tire Pump ... I have a kit called "Enginair" My daughter, who has a knack for finding stuff, gave me this as a gift several years ago. ? Quote Link to comment Share on other sites More sharing options...
knuckleharley Posted September 9, 2021 Report Share Posted September 9, 2021 11 hours ago, T120 said: Schrader marketed a kit. It came in a metal box - "Schrader" Spark Plug Tire Pump ... I have a kit called "Enginair" My daughter, who has a knack for finding stuff, gave me this as a gift several years ago. ? They were pretty common in the 50's and 60's. IIRC,the one we had came from Western Auto,and was in a tin container identical to the one you used to buy propane torches and bottles in. Ours also had a solid rubber hose. I THINK it came from Western Auto. Anybody else remember Western Auto? Quote Link to comment Share on other sites More sharing options...
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