Title: Con rods Post by: krede on November 15, 2008, 06:25:40 pm Can anybody confirm that the con rods used in the 2.2 are in fact the same as used in the pug 505 turbo?
They sure as hell look to be exactly the same.... Title: Re: Con rods Post by: phil75 on November 17, 2008, 09:47:26 am I can't translate “con rods” into French, it's what? a photograph or a drawing
Title: Re: Con rods Post by: JV on November 17, 2008, 10:31:36 am I can't translate “con rods” into French, it's what? a photograph or a drawing Hi Philippe, Con rod may be "la bielle" A very nice place to look for translations is: http://iate.europa.eu/iatediff/SearchByQueryLoad.do?method=load Jan Title: Re: Con rods Post by: krede on November 17, 2008, 12:21:17 pm It's short for "Connecting rod" :D
Title: Re: Con rods Post by: phil75 on November 17, 2008, 03:06:12 pm ok thanks
Title: Re: Con rods Post by: phil75 on November 17, 2008, 03:45:26 pm In the documentation Peugeot for engine 9N2 (murena/tagora) & N9T ( E ) (505 turbo) a difference between:
- Pistons - guide of valves - exhaust valves But no differences for connecting rods Documentation Peugeot (http://www.espace-murena.com/Fichiers/rta_n9t/manuel_moteur_505_TI.pdf) (www.espace-murena.com) Title: Re: Con rods Post by: krede on November 17, 2008, 08:58:29 pm Thank you very Much Phil :)
Title: Re: Con rods Post by: phil75 on November 18, 2008, 11:41:40 am the con rods for 9N2 and N9T are not available any more at Peugeot
Title: Re: Con rods Post by: krede on November 18, 2008, 12:19:07 pm I don't suspect that many parts for these engines are..
Title: Re: Con rods Post by: krede on January 01, 2009, 11:27:14 am Just to wrap this up..
The connecting rods are NOT the same. The turbo rods have small holes on to allow oil to spray onto the underside of he pistons. I'm not certain that this feature is present on ALL 505 turbo engines though. Title: Re: Con rods Post by: Anders Dinsen on January 01, 2009, 12:01:13 pm Just to wrap this up.. The connecting rods are NOT the same. The turbo rods have small holes on to allow oil to spray onto the underside of he pistons. Do you have a photo? Title: Re: Con rods Post by: krede on January 01, 2009, 03:35:42 pm Anything for you Anders :)
(http://img.photobucket.com/albums/v200/krede/Conrods2.jpg) (http://img.photobucket.com/albums/v200/krede/ConRods1.jpg) They appear to be identical apart from the oil channel, so my guess it that they are of similar strength. Title: Re: Con rods Post by: Anders Dinsen on January 01, 2009, 04:51:09 pm Anything for you Anders :) Thanks :) Interesting to see. Quite a small hole... It must be spraying the cylinder wall more than the piston. It could be giving better lubrication of the piston rings to allow for higher combustion pressure? Title: Re: Con rods Post by: krede on January 01, 2009, 05:28:24 pm Quote It must be spraying the cylinder wall more than the piston I don't think so. There is an insert directing the spray straight upwards. And in either case if better lubrication of the cylinder wall is wanted (which I haven't heard should be a problem on Murena engines) there are better ways to accomplish this. Title: Re: Con rods Post by: Anders Dinsen on January 01, 2009, 07:27:26 pm Quote It must be spraying the cylinder wall more than the piston I don't think so. There is an insert directing the spray straight upwards. And in either case if better lubrication of the cylinder wall is wanted (which I haven't heard should be a problem on Murena engines) there are better ways to accomplish this. Why then only spraying on one side of the piston? Why not both? Title: Re: Con rods Post by: krede on January 01, 2009, 08:29:31 pm well... the engines Ive seen that had under piston oil cooling, only used one nozzle pr cylinder so I guess the "spray pattern will be similar with this arrangement.
Title: Re: Con rods Post by: Jon Weywadt on April 24, 2009, 12:22:21 pm Quote It must be spraying the cylinder wall more than the piston I don't think so. There is an insert directing the spray straight upwards. And in either case if better lubrication of the cylinder wall is wanted (which I haven't heard should be a problem on Murena engines) there are better ways to accomplish this. Title: Re: Con rods Post by: krede on May 07, 2009, 10:01:11 am A little update.. just pulled another 505 n9te apart, and found that the rods in that one had no provisions for oil spray from the rods.. so.. they are made in both types.
Title: Re: Con rods Post by: Oskar on May 07, 2009, 11:46:43 am ive never heard of pistons beeing cooled fom the con rods. ??? on xu9j4 (16v pugg engine) they use spraynozzle mounted below the cylinders, spraying up on the piston
Title: Re: Con rods Post by: krede on May 07, 2009, 11:57:51 am Nozzles spraying the underside of the pistons are quite common on truck engines... but this system is also new to me... I speculate that it has more to do with lubrication than cooling... and It must also result in higher pressure loss in the system.
Title: Re: Con rods Post by: Oetker on May 08, 2009, 08:59:58 am Wasn't there a shortcoming of lubrication for the bearing shells in the 2.2?
Maybe this hole is a modification for it. Title: Re: Con rods Post by: krede on May 08, 2009, 09:07:12 am Don't think so... as far as I can tell the oil squirter hole is only present on early engines.. like the liquid filled exhaust valves etc... which is funny as these are the ones that put out really low power (146-160 hp).. that shouldn't merit such fancy engineering.
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