firing up the commer knocker

firing up the commer knocker

Category:

Autos & Vehicles

[goodwinmadhouse]

Yes not bad for something that was dumped out of an old timber boat. It's got a ways to go yet but it sounds even louder and more powerful in the flesh. If anyone has similar engines or old skool machinery feel free to contact. Keep that old knocker revvin Phil.

[NearAbbeyRoad]

@joffeloff

The TS-3 was made from 1954-1972. I was 3 cyl, 3 litre and fitted in Commer articulated trucks.

[NearAbbeyRoad]

@Abreen11

go to dairDOT.co.DOT.uk

[jimnrel]

Ahh,,, I remember that very destinctive sound. The Shell trucks were all Commers in the 60s and 70s. I remember the blower sticking out at the front..Full load on board,The sound....Like a v12 with a leaking exhaust...

[roguequokka]

@roguequokka gravel...not travel

[roguequokka]

My Dad used to cart travel around the hills around Perth in Australia in Commer Truck powered by one of these when he was about 18 or 19 (born 1935). My Gran used to say she loved it because she could always hear where he was.

[TIMMEH19991]

Brilinat Vid, thanks so much for posting! You have no idea how much I want to get my mits on a TS3 lump......

[joffeloff]

@Astralism A turbo could work just fine providing it's not the only one providing air. I see in your other comment you too know this - all marine two strokes have turbochargers, anything else would be a waste of the exhaust energy!

The patents vary though. Some only have turbochargers and wouldn't run on low RPMs, they have no need to. Others, like the old Wichmann engines, have an 'auxiliary blower' that actually cuts out once the engine spools up the turbo sufficiently.

[Astralism]

@joffeloff I, too, am very interested in this design. I've been dreaming about designing a new version with 3 or 6 cylinders with modern high-tech materials, such as making the block and everything out of metal matrix composites (alloys with ceramics in them, ultra-hard and durable), using modern high-pressure rail direct injection - then compound charging the whole thing, with a variable geometry turbo feeding an Eaton TVS supercharger multiplying the boost! Happy dreams. :)

[Astralism]

@joffeloff You can do a google search for "Rootes-Lister TS3". The first results have pictures detailing the process. It's asymmetrical, after combustion: exhaust ports are uncovered first, then intake ports uncover, combustion gases flush out, exhaust closes, and then intake closes last so air can pack in. I think that a supercharger is necessary, because you need something to force air in straight away when starting it. Turbo wouldn't work that fast, because it needs exhaust gases to spin up.

[joffeloff]

I don't know how exactly the geometry or timing of the ports works, though. If the exhaust port side piston doesn't close the exhaust ports at least slightly before the intake side piston closes the intake ports, any kind of overcharge pressure would unfortunately be impossible. :( It is my understanding that the pistons are in fact not completely synchronized and at one point in the cycle move in the same direction, so perhaps there is a chance?