Vacuum hoses
08-17-04, 01:17 PM
#1
Cheese
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Vacuum hoses
Ok, not sure exactly how many people actually surf this forum, but as some of you know, or dont know lol, I just got my FD last friday, and have been reading forum posts and searching things like a mad man. Most of my searching has been related to preventative maintenance, because well, Id like to be one of the few that can actually daily drive their FD without too much trouble 
That said, Im going to concentrate on fixing any problems the car has, and augmenting things that its lacking in. Seeing as this cars main problem is heat, Ill concentrate on making it LESS of a problem. If any of you have a better idea of what I should do first, please by all means, say something, but here is what I think Im gonna do first:
My main concern at this point in time, is the brittle vacuum hoses. I read every thread I could find on this, and they ranged from 'oh its an easy job' to 'god i hope i never have to look at another vacuum hose again'. Im more inclined to believe the second sentiment, because those are usually the people that did it right, and got EVERY hose replaced. Anyway, my current question/s are related to this.
First off, for those of you who DID get all of them, do you know how many of those hoses there really are? Ive heard a few different vague guesses, from about 60 to exactly 76. Does anyone know how many there REALLY are? It would make my life much easier when I finally dig in there and start doing it.
Also, of all the threads I read, no one ever stated what the best silicone hose was to use, well where to get it. Is there a 'best'? Or will any old high temp/qual hose work? Does anyone make a kit that has every single little hose in it, thus making far less guess work?
Also, this wasnt touched on all that much in any of the other vacuum hose threads that I read through, but is there anything else major down in the motor that could bear replacing? Like the FPD, any of those other solanoids with brittle vacuum hose nipples? (assuming I dont just straight up break any...) I realize that lots of people are of the idea 'dont fix it if it aint broke' but Id rather not have to tear half the engine apart to replace something a month from now, when I could just get it done now....
Well thats the first thing I plan on doing, later will be either a Koyo or a Fluidyne radiator, new radiator hoses, maybe Samco makes a prefit set for the FD, havent checked yet. Maybe a standalone knock sensor to put on the rear rotor housing.
What do ya all think? Is my thinking flawed anywhere? Im a newbie, and help is what I require
That said, Im going to concentrate on fixing any problems the car has, and augmenting things that its lacking in. Seeing as this cars main problem is heat, Ill concentrate on making it LESS of a problem. If any of you have a better idea of what I should do first, please by all means, say something, but here is what I think Im gonna do first:
My main concern at this point in time, is the brittle vacuum hoses. I read every thread I could find on this, and they ranged from 'oh its an easy job' to 'god i hope i never have to look at another vacuum hose again'. Im more inclined to believe the second sentiment, because those are usually the people that did it right, and got EVERY hose replaced. Anyway, my current question/s are related to this.
First off, for those of you who DID get all of them, do you know how many of those hoses there really are? Ive heard a few different vague guesses, from about 60 to exactly 76. Does anyone know how many there REALLY are? It would make my life much easier when I finally dig in there and start doing it.
Also, of all the threads I read, no one ever stated what the best silicone hose was to use, well where to get it. Is there a 'best'? Or will any old high temp/qual hose work? Does anyone make a kit that has every single little hose in it, thus making far less guess work?
Also, this wasnt touched on all that much in any of the other vacuum hose threads that I read through, but is there anything else major down in the motor that could bear replacing? Like the FPD, any of those other solanoids with brittle vacuum hose nipples? (assuming I dont just straight up break any...) I realize that lots of people are of the idea 'dont fix it if it aint broke' but Id rather not have to tear half the engine apart to replace something a month from now, when I could just get it done now....
Well thats the first thing I plan on doing, later will be either a Koyo or a Fluidyne radiator, new radiator hoses, maybe Samco makes a prefit set for the FD, havent checked yet. Maybe a standalone knock sensor to put on the rear rotor housing.
What do ya all think? Is my thinking flawed anywhere? Im a newbie, and help is what I require
08-17-04, 01:33 PM
#2
RX-7 Bad Ass
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Sounds like you're on the right path. For vacuum line, I HIGHLY recommend Hose Techniques line - http://www.hosetechniques.com. I'd get their FD kit - has PLENTY of hose in the correct sizes, and comes with a handy hose cutter, zip ties, etc. That way you'll have plenty of hose.
I've worked with some cheap silicone vacuum tubing in the past, and cheap is nothing but trouble, The HT hose fits right, has thick walls so it won't kink, and I've yet to have any of it split on me.
Big thing with the vacuum hose replacement is to take your time. Might want to get some spare check valves - you'll probably have some bad ones, or they'll break when you get in there.
Dale
I've worked with some cheap silicone vacuum tubing in the past, and cheap is nothing but trouble, The HT hose fits right, has thick walls so it won't kink, and I've yet to have any of it split on me.
Big thing with the vacuum hose replacement is to take your time. Might want to get some spare check valves - you'll probably have some bad ones, or they'll break when you get in there.
Dale
08-17-04, 02:30 PM
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I used the hosetechniques kit 4 years ago and the vacuum lines still look brand new. If you're going to take the solenoid rack out you might as well test every solenoid and check valve and also replace all 3 coolant hoses under the UIM. I would probably put a downpipe in before upgrading the radiator. That will remove a source of heat from under the hood and give you some more HP.
08-17-04, 03:02 PM
#6
When removing the old brittle hose from the solenoids, DO NOT try to pull the hose off intact. Always slit the hose first and carefully pry it free of the nipple or you will end up breaking off the nipples. And that usually means a new $40.00+ solenoid. I have used the silicone hose from Baker Products and have not had any problems, but it sounds like from the testimonials Hose Techniques has a good product too.
08-17-04, 06:21 PM
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Cheese
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Cool deal, thanks guys for confirming what I thought to be the correct path.
How long does it typically take someone to do it, if say, theyre a total rotary n00b like me? Ive got some mechanical knowledge, access to the right tools, and Im pretty damn good at figuring things out on my own when it comes to this sorta thing, even if I dont have a shop manual, but Ive never worked on a rotary before...just piston engines.
How long does it typically take someone to do it, if say, theyre a total rotary n00b like me? Ive got some mechanical knowledge, access to the right tools, and Im pretty damn good at figuring things out on my own when it comes to this sorta thing, even if I dont have a shop manual, but Ive never worked on a rotary before...just piston engines.
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