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Engine Specific Info and Questions => IDI Engine => Topic started by: stewardc on October 29, 2012, 07:28:12 am

Title: Coated/chromed injector lines ?
Post by: stewardc on October 29, 2012, 07:28:12 am: I know someone on here has done it, but I can't remember who. I understand it's a tricky business as the nuts remain on the line and cannot be bound up in any way. Can anyone give me some suggestions?
Title: Re: Coated/chromed injector lines ?
Post by: 92EcoDiesel Jetta on October 29, 2012, 08:36:51 am: Get junk delivery valves and put them on the ends before chroming.
Title: Re: Coated/chromed injector lines ?
Post by: stewardc on October 29, 2012, 03:49:07 pm: Wouldn't the chrome just weld everything solid? ???
Title: Re: Coated/chromed injector lines ?
Post by: R.O.R-2.0 on October 29, 2012, 03:53:56 pm: Quote from: stewardc on October 29, 2012, 03:49:07 pm
Wouldn't the chrome just weld everything solid? ???

kinda what i would think...
Title: Re: Coated/chromed injector lines ?
Post by: theman53 on October 29, 2012, 04:17:46 pm: 3m makes a powdercoating masking tape. If you went to a chrome powdercoat you could get it pretty well handled. You might have to coat the nut first then tape the inside of it and the end of the line and then coat the line. It would be doable that way. You might be able to send them to a plater and have it zinc coated and the zinc wouldn't hold onto the nut as bad as other platings. IIRC the factory had them cadnium or zinc yellow plated.
Title: Re: Coated/chromed injector lines ?
Post by: justiz00 on October 30, 2012, 05:55:27 am: I don't know the exact thickness, but at work both the zinc and gold chromate (electrical and mechanical plating methods) is x.x microns thick (whatever is required). Good enough for corrosion protection but no "welding" presay.
Title: Re: Coated/chromed injector lines ?
Post by: theman53 on October 30, 2012, 07:01:41 am: Yeah that is what I am talking. The zinc and zinc yellow dichromate like what is on bolts is the same. The yellow is just a dye. I know when we do bolts they have to do something to them, maybe anneal them, maybe it is a second heat treat. Whatever it is the treatment has to do with the integrity of the bolt as the zinc plating process weakens it initially.
Title: Re: Coated/chromed injector lines ?
Post by: smutts on October 30, 2012, 03:46:42 pm: Might hydrogen embrittlement rain upon the parade? ???
Title: Re: Coated/chromed injector lines ?
Post by: stewardc on October 31, 2012, 02:09:11 pm: Quote from: smutts on October 30, 2012, 03:46:42 pm
Might hydrogen embrittlement rain upon the parade? ???

Also a concern for sure. Surely someone has prettied up an old diesel ??
Title: Re: Coated/chromed injector lines ?
Post by: R.O.R-2.0 on October 31, 2012, 02:18:49 pm: Quote from: stewardc on October 31, 2012, 02:09:11 pm
Quote from: smutts on October 30, 2012, 03:46:42 pm
Might hydrogen embrittlement rain upon the parade? ???

Also a concern for sure. Surely someone has prettied up an old diesel ??

saw me lotsa purty krome injector lines on youtube today..

guarantee you they never commercially made a set of chrome lines for a 6.5 GM idi, yet i saw some today :P
Title: Re: Coated/chromed injector lines ?
Post by: 745 turbogreasel on October 31, 2012, 03:12:11 pm: Assemble motor.
Dip.
Win ;D
Title: Re: Coated/chromed injector lines ?
Post by: Jetmugg on November 01, 2012, 09:05:37 am: How about polished stainless steel lines? With a really good polish job, it can be hard to tell the difference.

Steve.
Title: Re: Coated/chromed injector lines ?
Post by: stewardc on November 01, 2012, 09:58:52 am: Know anyone who sells stainless lines ????
Title: Re: Coated/chromed injector lines ?
Post by: justiz00 on November 01, 2012, 10:36:28 am: I would contact this company. They make steel and stainless lines and do custom work for the cummins guys. I am sure if they had a set of lines to work off of then that could be replicated in ss.

http://www.scheiddiesel.com
Title: Re: Coated/chromed injector lines ?
Post by: CarlosA on November 01, 2012, 10:40:11 am: Nice quality custom stainless lines here - you wouldnt have to remove much material to polish them up. Same process for chrome and stainless - polish = removing material. Will cause the hex to not have a snug fit with a wrench, etc.

http://www.rocken-tech.com/Fuel_Lines.html

I have also been able to get zinc plated hardware to a near chrome shine .. more like an excellent aluminum shine. But that was with walnut shells and lots of tumbling.
Title: Re: Coated/chromed injector lines ?
Post by: R.O.R-2.0 on November 02, 2012, 11:22:25 am: plastic fuel line?

maybe that would be good for keeping a spare one in the car, in case of line breakage?