156 V6 - Water Pump & Cam - Alfa Romeo Forum
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(Post Link) post #1 of 6 Old 27-07-05 Thread Starter
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156 V6 - Water Pump & Cam

Hi all. Having bought my first Alfa in June I can see why people are so passionate about them. The sound, drive and value for money are unmatched.

That said my 50k mile, FSH v6 SP3 is causing me a bit of a headache . I think the car had sat around before I bought it and it's only now that things are starting to fail.

Last month was the air flow meter and some cosmetic items.

This month however I've had to take the car into MKG3000 (Twickenham) and they've found the water pump is failing (noisy bearing at the mo) as well as the track rod's and front brake pads.

It has just had it's cam changed (April) together with lifters/tensioners. With the water pump being changed I was wondering ;

1 - Is there a more reliable item than the standard Alfa replacement part ?
2 - If they've got to mess around with the cam and belt, should I use the opportunity to replace them with preformance options?

I know I don't post an awful lot but as I learn more about these wonderful cars I hope to help other newbies as they "see the light" !!

Thanks in advance.
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Re: 156 V6 - Water Pump & Cam

Hin my opionion modifying things Hogan is throwing money away.
concentrate on your regular maintenance and youll find very little goes wrong despite all the scaremongers out there. All Ive done is regular timed mainenance on my car which has just clocked over 85,000kms (V6 also )just had the cam belt done the secondary belt and all the tensioners plus the water pump and anew voltage regulator fitted to alternator which diagnosis said was causing battery light to come up.
Apart from this regualar maintenance have had a flawless run with no problems and no inclination to change cams etc for extra powerl. The power available from the standard 2,5 V6 is more than adequate without having to pay bucket loads of money for extras . I f you wanted to change anything, maybe a body kit or some cool mags.
But really the 156 V6 engine is a masterpice on its own and really doesnt need work on cams etc when this has all been done very well from the outset by Alfa.
Rosco Rotorua New Zealand.
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Re: 156 V6 - Water Pump & Cam

Get a metal water pump impellor stuck in there whilst the pump is out, they have a nasty habit of cracking and overheating the car.

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Re: 156 V6 - Water Pump & Cam

Thanks for your advice - metal impellor it is !!
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Re: 156 V6 - Water Pump & Cam

Sort of related but not on an Alfa engine. I was in my local specialists yesterday and they were rebuilding a 5-cylinder Fiat Coupe engine. In the box was the old cambelt, tensioners and water pump ... all looking remarkably similar to the TSpark bits I have sitting at home after my replacement.

But ... what a mess.

The water pump was badly worn (it wobbled!) and had leaked. The resulting water was being spread around the tensioners, etc. Results:

One pulley had a coating of rust formed along one edge and if you looked very carefully at the timing belt, was actually wearing that edge of the teeth away ...

The automatic adjustment on one of the "plastic" tensioners had seized completely.

The belt itself ... well let's just say he was lucky. It was cracked due to age. It didn't have a lot of life left.

In their experience they say that Alfa waterpumps are relatively good, but the Fiat version is a nightmare. And because it is all hidden behind covers, problems are not always obvious. This should have been due to coolent loss but from what I saw it had been happening for a long time.

I guess the morale of the tale is to keep a close eye on everything.

BTW: The engine was running when it came in. They are gasflowing the head and generally rebuilding/reconditioning it.

cheers, Gary

HIS: 1998 156 2.0 TSpark with Sport Pack 2, sunroof and hi-level spoiler in Alfa Rosso. V6 intake mod, clear side repeaters and Zeatek undertray.

HERS: 2009 MiTo 1.4 95bhp Turismo arrived 21st November in Techno Grey with colour-coded headlight surrounds.

"If you're driving on the edge ... you're leaving too much room!"
My Alfa156 Web Site - how-to's, piccies, links, useful stuff, etc.
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Re: 156 V6 - Water Pump & Cam

Don't suppose you know how many kms the Fiat had done?

According to the local independent Fiat/Alfa service agents the 5cyl Fiat cam belts/tensioners etc are generally very reliable. They change most at 100-120,000km as per the factory specs, and haven't had any where they have been alarmed at what they found when they took them apart. Hope they are right, my wife has one... Haven't asked them about waterpumps.

I have to say that the modern approach of running the waterpump off the cambelt scares me... At least on the old stuff (like my GTV) when the waterpump dies (as it did recently) it can't destroy anything else, and is easy to change.

Got a fright with a Fiat Croma my wife used to have, was getting close to cambelt change time when the waterpump started leaking. While I was doing that I decided I'd do the cambelt as well. Just as well, the belt was so loose that the tensioner wasn't actually turning, the belt was just sliding past it! Beats me how it stayed on... that belt had been fitted by the main dealer when we bought the car many years before.
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156 , cam , pump , water

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