400i water pump short hose dimension?

I think i may have a spare. If so I can measure when im back next weekend.

 

That short hose was replaced on my 400 Auto, the replacement is a silicon hose 38mm diameter and 55mm long. I do not have a picture handy but I can get one later if required.

 

Attached a picture of the hose as mounted on the 400 Auto, I have requested a description of the "how to". Not a major work, it was done as part of a regular maintenance on the car. I will send the details later.

The supplier of the hose is a specialist in competition car preparation (near Lyon in France).

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Here is one on eBay (at least I think this is the same part) available from Ferrparts:

https://www.ebay.com/itm/Ferrari-365-400i-412-Radiator-Cooling-Water-Hose-Pipe-102791/121885603249?epid=1357017542&hash=item1c60f2b5b1:g:ZJIAAOSwzhVWs8l6

 

I think that part 102791 in the eBay entry is for the BB's, the ratio length to diameter looks larger than for the 400 part.

 

Consider buying from Dave Helms. He has all of the correct water and fuel hoses for these cars. Not cheap but top quality.

 

Could be, but I would try calling Ferrparts or another reputable Ferrari parts business rather than guessing, or getting something that doesnt look right.

 

I agree with cross-checking , the Ferrparts website says it is for the carbureted BB's:

https://ferrparts.com/parts/Ferrari/102791

I also checked Eurospares (says the same as Ferrparts) and Maranello Classic Parts (says all BB's). But none of these sites are relating this part to the 365/400i/412.

I sent an email to the eBay seller requesting clarification, I will report back when I receive the answer.

 

I just noticed that the eBay detailed description relates this part to the BB's:

You are bidding on a Ferrari : - Cooling Hose Pipe, #17, NEW and OEM, ; Part # 102791 ; Fits the following models : 365 GT4 BB, 512 BB (Carburetor), 512 BBi



: call us at 888-383-8444

You can search our Ebay Store Via Part # or Description, good luck


So there is no consistency between the title and the description of this entry.

 

Good day Jean-Michel,

I think the Ebay item's title is incorrect, as if you look within the description it states:

Most likely the title was a carry over from another ad and used without looking past the "365" at the beginning.

Cheers,

Sam

 

Thanks Sam, yes, the eBay seller replied the title was wrong for some reason, now the title has changed to point to the BB's:

https://www.ebay.fr/itm/121885603249?ul_noapp=true

The eBay seller sent an additional message about it:

"according to ferrari it superceeds and goes to the testarossa line as well"


It is good for every one that this ad came up in the discussion, it now has a more correct title

 

Here are the details transmitted by the garage which did the work:

The silicon hose was selected because it is more flexible and its wall is thinner (for equivalent specs) than the original, this is a must because the distance between the two tubes is only 8mm (if using the original untouched hose, it has to be an engine out procedure).

Count 8 to 10 hours work (sorry if I mentioned it was not major).

1- car on a lift

2- vidange the coolant

3- remove the items for better access: alternator, belts, even air filter box on the passenger side (if the car is injected, perhaps other items to remove for access)

4- cut the old hose and remove

5- grease the inside of the silicon hose (WD40 was used).

6- two persons involved one bellow the car for guiding the hose in and one above to hold it and prevent it from snapping out.

7- feed the hose through the long tube first, then let it go down on the short tube (easier said than done of course).

8- secure both ends of the hose with circlips as shown on the picture

9- fill the coolant

10- mount the items of step 3-

11- test

 

I will also add a suggestion. When working on the front part of the engine/engine bay consider removing the hood. There are only 4 bolts that secure it to the hinges and the two struts. It is fairly light also.

 

Best of luck with this operation!

My understanding of step 6- is that the job was evaluated to require 2 persons. Due to space constraint coordinating 4 hands and arms from below the car inside a tight volume, it was decided to have one person below and one person above. The suggestion made by Ak Jim is very good, is is definitely worthwhile to have the bonnet/strut/marelli ignition out of the way for the person helping from above.

 

When I redid the A/C on my car I spent about an hour leaning way in the engine compartment working on the belts then it just kind of dawned on me, take the hood off. Much easier after that.

 

Kudos to you