What you put in, you'll get back ten fold
Members and searchers please be aware that some of our 'how to' guides do not currently show the intended help photos. This is because photobucket wants to charge a monthly amount for us to view our own pics. The photos are currently being replaced. If you need one of our guides and it is missing pics please let one of the Admin team know and we will make that one a priority for you.
Regards
Admin

Hose replacement

User avatar
mk1divemaster
Serial Poster
Posts: 384
Joined: Thu Sep 13, 2012 8:31 pm

Hose replacement

Postby mk1divemaster » Mon Jul 14, 2014 8:39 pm

Hi all , coming back from a mx5 run had a sudden coolant loss when I parked up at home , checked where the problem was , and I found the ISC vale to inlet manifold hose had split , belching out coolant all over the alternator etc! So I got to work. While all coolant was drained I decided to replace the heater hoses at back of engine too :-

1 Drain the system of coolant , put a container that can hold upto 6 ltr of liquid under the drain plug then undo plug and let the coolant drain , open filler cap and it will come out quicker.
image.jpg
Drain plug
image.jpg (279.67 KiB) Viewed 1568 times


2 locate broken hose/ hoses and take out ( make sure you have replacements !!) the ISC valve to Inlet manifold one was very tricky to release, as it had the original spring clips on it so very hard to get grips in to squeeze together. I removed the two hoses that were around it to give me some purchase.it takes some patience .
image.jpg
ISC valve hose
image.jpg (164.73 KiB) Viewed 1568 times


3 I then took off the heater hoses that lead into the firewall / bulkhead , the first hose was a doddle
release spring clips then I carefully cut the ends with a blade to help pull the hose off as it was fixed tight after years of use. The second is a bit of a bugger as it goes behind the engine underneath the coil pack , I persevered and took it out with some long nose pliers , but i think it will be easier if you took coil pack out of the way ( three bolts).
image.jpg
Before
image.jpg (190.34 KiB) Viewed 1568 times


4 I then cleaned the stubs and put a little washing liquid on ends to aid sliding new hoses on.
image.jpg
Stubbs clean
image.jpg (232.35 KiB) Viewed 1568 times


5 I did the same to the ISC / Manifold Stubbs too.

6 I put the new heater hoses on and fastened the clips .
image.jpg
New hoses in place
image.jpg (240.37 KiB) Viewed 1568 times


7 then attached the new ISC hose with new jubilee clips ,instead of the spring clips for easier removal next time.
image.jpg
New hose and clips
image.jpg (245.88 KiB) Viewed 1568 times


8 I then flushed the radiator through with a garden hose for a few mins to get rid of any sediment etc (I ran it until the exiting water ran clean) then replaced the drain plug.
image.jpg
A quick flush through
image.jpg (259.64 KiB) Viewed 1568 times


9 I took off the plastic expansion tank to give it a clean while I was flushing rad. Three bolts .

9 then I added fresh coolant 2 ltr of anti freeze. With 4 ltr of deionised water , you probably won't get it all in straight away until engine is warm , so just fill to neck of rad ,leave rad cap off then start engine and let her idle until the top hose gets warm and the thermostat opens up.the coolant will drop then so you can add the remaining fresh coolant. Add some of the coolant to the expansion tank , up to in between the low and full markers .Put rad cap back on have a wipe around , jobs a good en !
:handgestures-thumbup:

10 give her a run and check for leaks
image.jpg
Guilty ISC hose
image.jpg (211.93 KiB) Viewed 1568 times
User avatar
nedski
Moderator
Posts: 732
Joined: Fri Jun 01, 2012 11:17 pm
Location: North Kelsey, Market Rasen
Contact:

Re: Hose replacement

Postby nedski » Mon Jul 14, 2014 9:41 pm

:text-goodpost: Well done great how to post .
Mk1 1.6 Turbo. Gaz shocks. Tr Lane roll bar.
Garage Owner, Lincolshire
Helper to the Scunny track day crew and North Linc's Track Day Club.
www.stokesofkelsey.co.uk
User avatar
flea
Site Admin
Posts: 6618
Joined: Wed Dec 07, 2011 8:42 pm
Location: Medway towns, Kent

Re: Hose replacement

Postby flea » Mon Jul 14, 2014 9:49 pm

Great post. Well done
Eunos 1.6 special 1989 with a few added extras
Eunos 1991 1.6
Eunos 1990 1.6 project
Mk2 1999 1.8
User avatar
DavesBRG5
Moderator
Posts: 2206
Joined: Thu Dec 08, 2011 9:37 pm
Location: Bedfordshire

Re: Hose replacement

Postby DavesBRG5 » Mon Jul 14, 2014 10:24 pm

Job well done :handgestures-thumbup:
DAVE

1992 ROADSTER 1.6 Tanabe Sustec suspension, Cusco bracing, Momo Prototipo steering wheel, Mike Satur TT Hoops, Jass Performance interior bling.

Image
User avatar
mk1divemaster
Serial Poster
Posts: 384
Joined: Thu Sep 13, 2012 8:31 pm

Re: Hose replacement

Postby mk1divemaster » Tue Jul 15, 2014 10:55 pm

Cheers all :text-thankyouyellow: :handgestures-thumbup:
User avatar
Mazda Mender
Site Admin
Posts: 12138
Joined: Tue Dec 06, 2011 6:18 pm
Location: Pie land,North west
Contact:

Re: Hose replacement

Postby Mazda Mender » Wed Jul 16, 2014 7:23 am

Just a tip....
It will be far easier with the coil pack removed and if the hoses are dead, then be careful but just cut the rubber hoses clean off from the metal bulk head and engine side ends, leaveing a stubby hose and clip still attached which you will find that getting to the sring clips off and to a lot easier as you can bring it straight off and out , then just cut along the length of the stubby left over pipe to just peel in half and off, more so on the bulk head heater matrix stubs as they are a vey fine brass or copper pipe and can be crashed very easy, and if you do get them out of shape they will never make a seal and will need to be removed and swapped with new....big job.
Don't forget tp put the hose clips onto the new pipes before fitting :wink:

Great write up buddy :bow-yellow: :clap: :clap: :clap: :clap:
M-m
The Disclaimer:-
This post is a natural product made from recycled electrons. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects, the articles/answers/comments are provided for information purposes and they are not intended to substitute informed professional advice, I or mazdamenders.net cannot personally be hold responsible for any damage occurred from following this procedure or any injuries from it. Proceed at your own risk.


Mk 1 Eunos 93 black V.S II 1.8 fettling,
Mk 2 .1/4 Roadster 99 black & gold V.S 1.8 being rebuilt,
Mk 1 Eunos 90 1.6 (claimed by daughter)
Mk 1 Eunos 96 1.8 blue B2...being fettled
Mk1 Eunos 93 1.6 black S special **gone**
http://www.mx5oc.co.uk/ http://www.mx5nutz.com/forum/ http://miata.net/ http://www.autolinkuk.co.uk/
User avatar
mk1divemaster
Serial Poster
Posts: 384
Joined: Thu Sep 13, 2012 8:31 pm

Re: Hose replacement

Postby mk1divemaster » Wed Jul 16, 2014 6:11 pm

Cheers bud :handgestures-thumbup:
User avatar
cjgreaves41
Regular
Posts: 115
Joined: Fri Jul 26, 2013 3:26 pm

Re: Hose replacement

Postby cjgreaves41 » Tue Aug 11, 2015 7:05 pm

Chaps.

Just doing the coolant change on mine. Ive bought Comma Super cold Master. The last time the coolant was changed it was done at a garage... The mixture that I have drained out appears pink, as I didnt chnage it I've no idea what it is.

Is there a problem with mixing coolants? If so whats the best way to flush the system completely? Prior to putting the new stuff in?

Cheers
User avatar
Lazza
Site Admin
Posts: 2569
Joined: Thu Dec 08, 2011 12:05 am
Location: Wokingham
Contact:

Re: Hose replacement

Postby Lazza » Tue Aug 11, 2015 7:19 pm

No problem mixing any coolants that are compatible with the MX5 cooling system.
Lazza

2001 Mk2.5 MX5 1.8 Sport
Hard Dog Deuce
GAZ Gold Pro
Mk3 seats
17” OZ Racing Superturissmo wheels (for the toad)
15” Rota Circuit 10 wheels (for track use)
User avatar
Mazda Mender
Site Admin
Posts: 12138
Joined: Tue Dec 06, 2011 6:18 pm
Location: Pie land,North west
Contact:

Re: Hose replacement

Postby Mazda Mender » Wed Aug 12, 2015 7:18 am

Years ago there was as they were two different chemicals which did not like each other, just make sure you do the 50/50 mix correct, as to much is just as bad as not enough.
The cooling system holds 4 1/2 Ltrs so you need to add 2 1/4 concerntrated and then water, run her and bleed off for air pockets.

But remember you have 2 year and 5 year antifreeze now, the colour stuff is a load of crap these days to.
M-m
The Disclaimer:-
This post is a natural product made from recycled electrons. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects, the articles/answers/comments are provided for information purposes and they are not intended to substitute informed professional advice, I or mazdamenders.net cannot personally be hold responsible for any damage occurred from following this procedure or any injuries from it. Proceed at your own risk.


Mk 1 Eunos 93 black V.S II 1.8 fettling,
Mk 2 .1/4 Roadster 99 black & gold V.S 1.8 being rebuilt,
Mk 1 Eunos 90 1.6 (claimed by daughter)
Mk 1 Eunos 96 1.8 blue B2...being fettled
Mk1 Eunos 93 1.6 black S special **gone**
http://www.mx5oc.co.uk/ http://www.mx5nutz.com/forum/ http://miata.net/ http://www.autolinkuk.co.uk/

Return to “MK1 -1989 > 1997 (NA)”

Who is online

Users browsing this forum: No registered users and 2 guests