engine and drivetrain water bypass

[norm]

Could these parts be found at the local pic-n-pul? What years and models?

This text came from Top End:

The original water lines running from the water pump to stock manifold must be removed and bypassed directly to the heater core. Again there are so many variations on these lines over the years that the parts are not provided. The cleanest (and most expensive) way is to use a 320i water pipe (part #1153 1266 817) in conjunction with the reducer hose (part #11531266472) and heater return hose (part #64 21 1 356 170). The cheap and easy method is to use a 5/8th heater hose all the way from the water pump to the heater return line.

Water bypass kit $95 Order Now

Contains a new metal water line, new heater return hose, reducer hose, assorted plugs for the engine block and water manifold, plus all needed hose clamps and washers.

Norm

[norm]

I just reread the paragraph and found my answer...320i

Norm

[Bill_Riblett]

Check and see if the part changed between 1979 and 1980. I know the early 2 liter engines had them, but not sure about the 80-83s which had a completely different intake manifold.

[nbcbird]

You need to use the bypass pipe from the later model 320i (>'79) which lists the correct parts numbers for pipe (866.817) and hose (266.472). This hose is reduced in size from the pipe to the water pump. This is a great fit since the bracket on the pipe fits a threaded hole in the block (at least on my '71). You will need to plug/ cut off/ weld the small metal extension on the lower end of the pipe, however

A water bypass pipe for the tii will also work, but I think the 320i pipe is a better fit.

[tjones02]

A water bypass pipe for the tii will also work, but I think the 320i pipe is a better fit.

The Tii water pipe does NOT fit unless you are using a Tii water pump.... The pipe curves up at the front for the hose to clear the injection pump bracket.

But otherwise.... Yes you need the water pipe from a late 320i.... the 11 53 1 266 472 and 64 21 1 353 368 hoses.

[nbcbird]

Yes TJ is right, I meant to say the ti bypass pipe (part number 11.53.1.251.084) will fit--NOT the tii pipe. This part is the least desirable choice since it cost over $150 and isn't as good a fit as the 320i pipe. Sorry for error.

[tjones02]

Yes TJ is right, I meant to say the ti bypass pipe (part number 11.53.1.251.084) will fit--NOT the tii pipe. This part is the least desirable choice since it cost over $150 and isn't as good a fit as the 320i pipe. Sorry for error.

The Ti pipe fits great...... exactly same as 320i but for the extra 8mm hose connection that the 320i one has. Ti one is correct for any side draft setup!

[tjones02]

Norm... the part # for the 320i pipe is 11531266817 with a list $ of 53.66