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(Post Link) post #1 of 7 Old 29-08-15 Thread Starter
Status: Working Hard On 156 Veloce 3.0 Turbo Project
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water pump speed

anyone know what sort of speed / pressure the water pump runs

ive got a new pump (metal) and its hardly pumping anything. is it possible ive got the belt making it run in reverse . what direction is it meant to run . the belt is running on the under side of the pipe drive wheel. is this correct.

sorry for questions as its driving me crazy as i need water movement

also on a v6 156 what resistor runs the 1st fan top or bottom as ive only got both to run at once. (fans dont run untill 100-101 deg)

All spares parts for 156 and 147 being sold that i will not be using (cheap) nothing too small ask what you want , willing to post world wide Phone 07922123242 Ask for Neil and say Mark said to phone .

Download link for Alfa 156's http://www.filedropper.com/alfaelearn
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(Post Link) post #2 of 7 Old 29-08-15 Thread Starter
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dunno what i was thinking about belt being wrong way round . think its impossible to do.

but is it possible for a water pump to fail to work with in 10 secs of being new ?

Last edited by mirlock; 29-08-15 at 16:37.
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could be an airlock i guess.. doubt it would fail immediately even the plastic ones worked for some time..

they never have huge pumping ability as such just enough to overcome the radiator internal core ... lots of race engines oversize the pulley but i,m guessing they run at around 1/2 or 1/3 engine speed without measuring pulley sizes
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(Post Link) post #4 of 7 Old 29-08-15 Thread Starter
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Quote:
Originally Posted by maxiboy wales View Post
could be an airlock i guess.. doubt it would fail immediately even the plastic ones worked for some time..

they never have huge pumping ability as such just enough to overcome the radiator internal core ... lots of race engines oversize the pulley but i,m guessing they run at around 1/2 or 1/3 engine speed without measuring pulley sizes
Hi Maxi thx for reply

I gave it a good flushing and your right not a huge pump rate but it is circulating thank god.

But damn it runs hot or feels hot . after an hour of ticking over the temp gauge reads between 75-90 and now ive fixed the 1st stage fan speed its not reached the 2nd stage speed , But the rad and hoses feel so hot like burn hot
maybe having a alloy rad it feels hotter when touching then a plastic 1 and im not used to it.

just need to fix lambda and a small oil leak from turbo oil return and i can get on with other stuff.

but for now time for a cuppa tea
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Are you seeing coolant being returned into the header tank?
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Its meant to be driven by the top & bottom of the pulley:

IMGP2421.jpg Photo by monkeyrabit | Photobucket
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(Post Link) post #7 of 7 Old 29-08-15 Thread Starter
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Quote:
Originally Posted by Pud237 View Post
Its meant to be driven by the top & bottom of the pulley:

IMGP2421.jpg Photo by monkeyrabit | Photobucket
Yeah thx pud its how it is , i think i was thinking rubbish in frustration .and yes its flowing back to header tank, Panic over
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