Hydrovac check valve

rixtoys52 · Post by **rixtoys52** » Fri Jun 15, 2012 11:40 pm

Does there need to be a check valve in the vacum line to the hydrovac? If one is in the system where should it be? Internal in the hydrovac or external in the line. I am pretty sure my set up does not have a check valve . Thanks for any info.

dr deuce · Post by **dr deuce** » Sat Jun 16, 2012 6:00 am

The check valve is at the engine manifold and yes you need it.

rixtoys52 · Post by **rixtoys52** » Sat Jun 16, 2012 1:00 pm

Dr Duece do you have a part number of one that will work. It does not need to be original as my Chevy has a 270 GMC in it already. Thanks for your help.

dr deuce · Post by **dr deuce** » Sat Jun 16, 2012 7:01 pm

I think you can go to a good parts store and get one. I bought a newer hydrovac and it came with one

rixtoys52 · Post by **rixtoys52** » Mon Jun 18, 2012 8:18 pm

So far no luck with finding one.

dr deuce · Post by **dr deuce** » Tue Jun 19, 2012 9:02 pm

If I get a chance, I will stop at an autoparts store this WE and see if they have one

retro-roco · Post by **retro-roco** » Tue Jun 19, 2012 10:43 pm

This one looks like it might work...

http://napaautoparts.com/Catalog/Catalo ... 0271417108

rixtoys52 · Post by **rixtoys52** » Fri Jun 22, 2012 11:44 pm

Thanks guys I so far found only a 90 degree one that looks to small to do the job. The metal one looks good in line is better. I will see what I can find this weekend again thanks for your help Dr Deuce and Retro-roco.

rixtoys52 · Post by **rixtoys52** » Tue Jun 26, 2012 7:32 am

Hi Retro I ordered one of those today . I will can make it fit. Thanks for the link.

The GMC CCKW

Hydrovac check valve

Hydrovac check valve

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Re: Hydrovac check valve