3200 GT Perished Hoses

sdlangford

sdlangford

Junior Member
Messages
33
The two hoses that go into the throttle body right at the front of the engine need replacing on my 3200 GT.

I was looking as some performance hoses from Roose, but me not being technical with all things mechanical, i am not sure how you would describe these hoses.

Are they a turbo to sump hose or something else.

Roose have a few kits but only want these two hoses that look to go to the turbos.

Many thanks.

Simon
 
davy83

davy83

Member
Messages
2,829
There are a lot of hoses at the front of the engine! The two big hoses that go in either side of the throttle body are air hoses from the intercoolers in the wings. they are down stream of the turbos, so under slight air pressure. so you don't need hoses that are good for water systems. Not sure i have ever seen silicone replacements for these. not sure if this helps, i think you are talking about items 9 and 23 in this parts diagram?
http://www.eurospares.co.uk/parts/maserati/3200-gt/cooling-heating/heat-exchangers-pipes-41467
 
Trev Latter

Trev Latter

Member
Messages
1,213
Totally agree with the comments above. Bite the bullet, buy the full kit and build in some reliability. When I changed all of mine last year it was apparent that the two turbo coolant hoses and in particular, the two turbo oil return hoses were in very poor condition. Don't forget these cars are 15 plus years old now and rubber bits don't last forever.
 
SteveM

SteveM

Member
Messages
543
Like the others have said if these two intercooler to throttle body pipes need doing then you are likely to have far worse condition pipes elsewhere - on air side the couplings that connect to the intercoolers are particularly prone to splits. If you havent replaced the water pipes then I would say that is even more of a priority - as said above the ones to the turbo tend to fail first given heat and clip rusting out.
Also one word of caution - if you do do go full full air side kit make sure you know chassis number as there is a kit for Series 1 and a different kit for series 2 - I believe it relates to connections for pop off valves. The reason the other chap selling is he got the wrong series set.
 
sdlangford

sdlangford

Junior Member
Messages
33
Thanks guys, so that i am clear, the two hoses that go into the throttle body (left and right) rather fat ones are not included in any of the silicone packs from Roose ?

Where are the turbo oil return hoses ? are these easy to access ?

These were 2 items on my advisory list to look into, so want to know if its a diy job.

Simon
 
allandwf

allandwf

Member
Messages
11,019
Turbo coolant hoses went on mine, they are hidden away. They will let you know with a plume of steam out the bonnet vent!
 
SteveM

SteveM

Member
Messages
543
sdlangford said:
Thanks guys, so that i am clear, the two hoses that go into the throttle body (left and right) rather fat ones are not included in any of the silicone packs from Roose ?

Where are the turbo oil return hoses ? are these easy to access ?

These were 2 items on my advisory list to look into, so want to know if its a diy job.

Simon
Click to expand...

Hi Simon,

I believe the hoses you refer to are included in both kits. If your chasis number is lower than 4783 then you have a series 1 car which will be the red boost hoses. The hoses i think you are describing that connect to the "Y" piece have a single 45 deg bend. If you have a later car then you will be series 2 which has longer S shaped hoses with connections for pop off valve. If working to a budget then call Roose as they will sell seperately but as said earlier you will probably need to replace the intercooler couplings as these split.

In terms of Turbo coolant pipes, the ones I was refering to (and usually the first to go) are the coolant pipes between engine block and turbo. (Coolant not boost pipes). On series 1 car these are the two staight pipes on the right of the Roose coolant picture and for series 2 they seem to have shown these as seperate. Neither of these pipes is easy as a DIY job however I did do these myself on my back but wish I had access to ramp. You will need to remove air filters and quite a few turbo pipes (which if you buy whole boost kit you will be doing anyway). For LHS I recall I had to remove alternator and on RHS partially removethe A/C compressor but with more access and more tools it may have been possible in situ without removing either of these items.

One final thing if you go to effort of draining cooling system my recomendation would be go for whole kit and do the thermostat at same time - they all seem to get stuck at a particular age and not particularly expensive for maserati
 
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