Hi guys im wondering how to plum my rad up to my r1 engine? the rad has one inlet (top) and one outlet (bottom) thats it.Iv got an expanshion bottle from a mk2 golf it has a small hose at the top and main one at bottom.
How do i connect it all together what goes where?

Cheers drew

what rad are you using m8

VW polo or similar from the sounds.

Here's how I did mine :

pump inlet (near sprocket) goes to tee piece, one side to bottom of rad, one side to expansion bottle main port.

Head outlets go to thermostat, then to tee piece, one side from oil cooler outlet, one side to top of rad.

Bleed from top of 'stat is used to bleed the system while filling, then sealed with bolt and rubber washer.

Bleed from pump goes to expansion bottle small port.

I can post some pics if necesary.

Kingr

The rad is from a caterham.
if you could post some pics that would be great thanks
Drew

OK, here we go. A couple of pics, as promised, I've got some more, so give me a shout if you need a bit more detail.

Kingr

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where is the bleed from pump on the engine? iv not got my manual
Drew

The coolant pump bleed is the very small pipe next to the coolant pump inlet (near sprocket.

Kingr

What do i do about the water temp sensor? on the r1 it was on the rad .

Drew

I had a threaded hole in my radiator that I could have used (I put fan temp switch in there in the end) but I used an inline adaptor to fit it into (see pictures, it features in both, shortly after the thermostat).

Kingr

Where did you get the inline pickup from?

Merlin Motorsport, but I've seen them available from quite a few other places. No reason not to recomend Merlin though, good service, just watch their prices, they can be quite steep on a few things. I got all my Samco hosing from them at the same time which cost more than you would believe, but that's just the going rate, not any reflection of Merlin.

Kingr

[Edited on 30/6/04 by kingr]

Im using the r1 clocks so how would i go about fitting a water temp sensor? im not using the r1 rad.

Just get a yamaha sender and plumb it into the cooling system (pre rad) then wire it up as per the bike.

After all its the clocks that control the fan.

Cheers

Jim

You'd just need a inline adaptor to suit the thread on the R1 sender. If there's not a standard one available you'll need to get a suitable thread or adaptor machined - Think Auto is great for this sort of thing.

Kingr

Also make sure you get a sender that matches your clocks as they are not all the same 98/99 uses 2 senders (fan control and temp). 00/01 has one sender (a combi sender).

[Edited on 5/7/04 by jimgiblett]