Vacuum hose hornets nest


my1967stang
02-13-2007, 10:58 PM
Whats the best way to replace all the vacuum lines under the intake manifold of a 93-95 RX-7? Is there any type of vacuum line to use thats better than others? I heard this job is a real pain to do.

72' Stang 351 H/O
02-14-2007, 07:41 AM
I thought this was going to be how to kill hornets in a vaccum hose.:grinyes: As for hose. I would suggest rubber with metal mesh to make sure the line doesn't....suck in for lack of a better word.

jcsaleen
02-14-2007, 09:41 AM
32 solinoids....

Goodluck ~ :)

http://www.autosportracetech.com/RX-7/vacuum.jpg

ghostrx7
02-15-2007, 11:38 AM
take your motor out, and get the new vacuum hoses that dont crack. you dont need a specific kit, just buy a long hose, and cut as needed...

drftk1d
02-17-2007, 06:45 PM
you can get the hose techniqes one if you want a kit

ghostrx7
02-21-2007, 08:49 AM
thats what i got i think...

Tim McCreary
04-23-2007, 12:53 AM
Whats the best way to replace all the vacuum lines under the intake manifold of a 93-95 RX-7? Is there any type of vacuum line to use thats better than others? I heard this job is a real pain to do.

If money is not an object, use viton hose. Otherwise use silicone hose. NEVER use regular rubber hose as this is what caused the demise of the twin turbo motors to begin with (among other things).

Replace check valves with Viton check valves. Also, take the time to check the 12 solenoids end nipples to make sure they are not brittle. Press on them. If they break, then replace. The 7 or 8 that appear similar are acutally mechanically and pneumatically identical.

Tim

AcCordGeN5
04-23-2007, 05:21 PM
If money is not an object, use viton hose. Otherwise use silicone hose. NEVER use regular rubber hose as this is what caused the demise of the twin turbo motors to begin with (among other things).

Replace check valves with Viton check valves. Also, take the time to check the 12 solenoids end nipples to make sure they are not brittle. Press on them. If they break, then replace. The 7 or 8 that appear similar are acutally mechanically and pneumatically identical.

Tim
In addition, if you are going to be staying with the sequential system and want to maintain a 10-8-10 boost pattern (assuming your FD is in well running order). Do not forget to remove the 'restrictor pills' in your "wastegate" and "precontrol" actuator lines and insert them into your new hoses. It is a good idea to replace one hose at a time.

Good luck with the "rats nest". One weekend is all you need to complete this job.

Marc

http://www.rx7.org/Robinette/images/TurbochargerBig.jpg

Tim McCreary
04-26-2007, 01:00 AM
http://www.usplastic.com/catalog/product.asp?catalog%5Fname=USPlastic&category%5Fname=45&product%5Fid=15641&cookie%5Ftest=1

Someone was selling these some time ago on ebay. They sure beat the stock check valves for quality and price.

Tim

AcCordGeN5
04-26-2007, 09:51 AM
http://www.usplastic.com/catalog/product.asp?catalog%5Fname=USPlastic&category%5Fname=45&product%5Fid=15641&cookie%5Ftest=1

Someone was selling these some time ago on ebay. They sure beat the stock check valves for quality and price.

Tim
Viton check valves are great. I am actually in the process of ordering a set from a member on the Rx7Club forum. Below is the link where you can order a set.
http://www.clubrx.org/default.asp?ACT=5&content=26&id=8&mnu=8

Tim,
What is the difference between the one you posted and the one Dale sells?

Marc

Tim McCreary
04-26-2007, 10:25 AM
Tim,
What is the difference between the one you posted and the one Dale sells?

Marc

Marc

As far as I know, just the price. They are most likely made by one company only.

Tim

AcCordGeN5
04-26-2007, 10:48 AM
Marc

As far as I know, just the price. They are most likely made by one company only.

Tim
That is what I thought. I just wanted to make sure there was no major difference. Better to be safe then sorry, you know how that is in the rotary world...lol

Marc

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