Coolant pipes - converting to silicon

[franksm]

Hi folks

Small pipe burst on my '92 230CE and finding a replacement is both difficult and expensive... it's the 8cm rubber pipe between thermostat and waterpump. I am going to start converting the lot to silicon - unfortunately Samco/etc don't list a kit for any MBs.

Has anyone got the pipes off a 2.3 4-cyl and know the measurements ? It would save me tearing my car apart. I think the rad top-hose and the 8cm thermostat pipe are 45mm id; pipe from block to "device/valve" on chassis rail under expansion tank is 18mm or 20mm id

Ta

Frank

 

[television]

http://www.detali.ru/cat/oem_mb2.as...GM=717.413&CT=F&cat=15T&SID=50&SGR=165&SGN=02

Item 11 in the picture.

Your car looks so nice. Malcolm

 

[franksm]

Cheers Malcolm !

What does the 80mm refer to ? internal diameter ?

The pipe that has burst on mine is part 122 in this diagram:

http://www.detali.ru/cat/oem_mb2.as...GM=717.412&CT=M&cat=504&SID=20&SGR=015&SGN=01

description says 81mm ! I think that matches the length, but internal diagram is (I estimate) 45mm

 

[television]

Cheers Malcolm !

What does the 80mm refer to ? internal diameter ?

The pipe that has burst on mine is part 122 in this diagram:

http://www.detali.ru/cat/oem_mb2.as...GM=717.412&CT=M&cat=504&SID=20&SGR=015&SGN=01

description says 81mm ! I think that matches the length, but internal diagram is (I estimate) 45mm

81 is the length as you say, all pipes are measured internally owing to the various thickness of the make of the pipe.

malcolm

 

[franksm]

Think I'll just have to pop the pipes off and measure them... dang...

and order silicon from here: http://www.demontweeks.co.uk/products/ProductList.asp?cls=MSPORT&grp=MC047&pgrp=M025&tlgrp=MS004

There's one oddball pipe from the block - kinda like a T-pice with one large bore pipe, and smaller-bore shooting out the side.

 

[kth286]

franksm

Why tear your hair out when the simple solution is just to visit the Merc dealer with your VIN and he will order the pipes for you in about 2/3 days delivery.
No need to take them off. The Merc parts system is second to none and will be the right parts if you supply the VIN.

The pipes have lasted 15 year do far, so the new ones will likely last 15 years again - where's the problem ???????????

 

[franksm]

From a Benz dealer, that 8cm x 4.5cm pipe is £30 + VAT !!!!! :-O

I'd rather spend the money on silicon that'll last twice longer. Think I'll just raid a scrapyard for the bit I need to give me time to figure out the silicon kit