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Engine Specific Info and Questions => IDI Engine => Topic started by: Quantum TD on August 14, 2008, 12:05:19 am

Title: Injector Questions
Post by: Quantum TD on August 14, 2008, 12:05:19 am
So, I'm braving the injector rebuild for the first time. I acutally haven't decided if I'll buy rebuilt, or rebuld them myself. I get parts at cost, so that will be a factor.

My question is this:

Is there any reason why VW lists a a different nozzle (and rebuilt injector) between the Mechanical 1.6 NA and the Hydraulic 1.6 NA?

The reason I ask, is because I need injectors for a 1987 Hydro 1.6 NA, and the nozzles cost $18. each. But the nozzles for the 1.6 Mechanical NA are only $8.

If they're the same, then I'll probably rebuild and save some change buying the cheaper nozzles. But if I have to use the nozzles specified for the Hydro motor, the  I might just buy rebuilts.

Any clue to the difference? Breaking pressure?

Thanks
Title: Re: Injector Questions
Post by: rabbitman on October 21, 2010, 09:41:34 pm
Bumpity bump because I'm wondering too and I'm sure someone knows ;D.

Why different nozzles for hydro and mech?
Title: Re: Injector Questions
Post by: Mark(The Miser)UK on October 22, 2010, 04:51:51 am
Quote from: rabbitman on October 21, 2010, 09:41:34 pm
Bumpity bump because I'm wondering too and I'm sure someone knows ;D.

Why different nozzles for hydro and mech?
No reason at all. Batches, counter-productive 'progress'  ::)
Title: Re: Injector Questions
Post by: vanbcguy on October 22, 2010, 11:50:15 am
Probably doesn't make a difference, but didn't we all figure out the precup size had changed between the original mech head NA and the hydraulic head NA?  Might explain the difference in nozzle part number...
Title: Re: Injector Questions
Post by: bigbillyboy on October 22, 2010, 03:06:10 pm
where is the best place to buy nozzles?  I want to rebuild mine...
Title: Re: Injector Questions
Post by: Mark(The Miser)UK on October 23, 2010, 06:56:55 am
Quote from: bigbillyboy on October 22, 2010, 03:06:10 pm
where is the best place to buy nozzles?  I want to rebuild mine...

A scrap yard, from a frontal victim. Get German/French ones.  All for the price of one, or less ;D
Title: Re: Injector Questions
Post by: rabbitman on October 23, 2010, 12:14:38 pm
Quote from: bigbillyboy on October 22, 2010, 03:06:10 pm
where is the best place to buy nozzles?  I want to rebuild mine...

Rockauto has real bosch nozzles for like $11.53 each, the problem though is they make you buy 'em in packs of 10 so it's $115.30 for 10. Or you can pay 12.91 and get 'em each.

That's for mech heads. Hydro nozzles cost $22.99 each.
Title: Re: Injector Questions
Post by: vanbcguy on October 25, 2010, 12:14:38 pm
Canadians can get hydro nozzles for about $12.00/ea:

http://parts.autopartsonlinecanada.com/parts/apocanada/wizard.jsp?year=1986&make=VW&model=JET-D-001&category=D&part=Diesel+Inj.+Nozzle

http://www.autopartsway.ca/autoparts2/index.cfm?fetch=part~ID=1984~Volkswagen~Jetta%20Diesel%201.6%20L4%20Turbo~240709

...or fully rebuild injectors for about $45.00/ea

http://www.autopartsway.ca/autoparts2/index.cfm?fetch=part~ID=1984~Volkswagen~Jetta%20Diesel%201.6%20L4%20Turbo~240708