COVID-19 Coronavirus Message Updated: 17th September
Mail Order Customers:
  *
Our carrier DHL is operating near normally across the world. Allow an extra day for delivery (2 days for Australia, 6 days for New Zealand), just in case. However, regular international postal services can have additional delays, and are not recommended for anything required within 6 weeks.
  * For the UK only, Royal Mail are delivering the vast majority of orders on time according to our data, but is experiencing higher levels of staff absences, so there may some local delays.
  * We will be working normally and have a large warehouse full of parts that will help keep your car on the road. However, we are beginning to see supply delays from factory lockdowns around the world.
Workshop Customers:
  *
Following government guidance, we are open as usual. Taking your vehicle to a garage for repairs is a permitted activity (safety) as long as you observe the social distancing rules. We have strict social distancing processes internally and disinfect daily (not least because we have staff in vulnerable groups). In the circumstances, we have had to close our waiting room. Our mechanics wear gloves at all times and we will disinfect your vehicle with our Zaflora sprays on handing back to you. We would respectfully ask you to show our staff the same courtesy. We also have full amount contactless payment systems.
  * MOTs due for renewal from 30th March to 31st July will be extended for six months. However, you are still legally obliged to keep your vehicle in a safe and roadworthy condition, so if you need to use your car in this period, it is still strongly recommended to get one done.







This page:


:h_alt

Replacing The Cam Belt And Water Pump On The Alfa 4C Coupe (Part 2)



The main objective now is removing the cast alloy side support that covers the cam belt

:alt

RETURN TO PART 1



Jack the engine up enough to take the weight off of the engine mounts.

:alt

Undo the 15mm nut and bolt to the right side engine mount stabiliser bar.

:alt

Then the x2 15mm bolts on top of the engine mount...

:alt

...and x3 18mm nuts.

:alt

The alternator has x2 10mm bolts to a plastic covering.

:alt

The last alternator bolt is 13mm, once unbolted just lay the alternator down.

:alt

The cam belt protective plastic covering has x5 5mm allen bolts. To the right of the side cover unclip the pipe and electric trunking so that the cover can be removed.

:alt

The last bolts to the alloy side support are a 13mm...

:alt

....and x3 15mm.

:alt

You can now remove the alloy support.

:alt

If the exhaust camshaft doesn't align with the cam locking tool, release the crank shaft locking tool and rotate the crank clockwise 180° then lock it back up. You should now be able to lock up the exhaust camshaft.

:alt

Next lock up the inlet camshaft.

:alt

Undo the 12mm bolt to the cam belt tensioner and remove. Take off the crank locking tool so you can remove the cam belt.

:alt

The cam belt idler has a 15mm bolt.

:alt

Undo the 30mm caps on the camshaft pulleys.

:alt

Loosen the exhaust camshaft pulley so it can turn freely (T55 bolt) but take off the inlet pulley to gain access to the water pump.

:alt

The water pump has x2 6mm allen bolts.

:alt

Put a tray on the floor under the water pump to catch the coolant as you prise the pump off.

:alt

Clean any residue and dry around the contact area where the pump has been lifted.

:alt

We tend to apply a bead of gasket sealant around the 'O' ring of the new water pump. Bolt on the new water pump.

:alt

When replacing the cam belt tensioner the lug on the support plate locates between the fork on the tensioner, the fixing nut slides so just TACK the tensioner on for now.
Bolt on the new cam belt idler and the inlet camshaft pulley (allowing the pulley to spin freely).

:alt

Loop on the new cam belt noting the 'DIRECTIONAL' markings.

:alt

Using a long handled FLAT head screwdriver rotate the base of the tensioner so that the needle....

:alt

....points to the hole on the tensioner fork, then tighten the mounting bolt.

:alt

Tighten up both the cam shaft pulleys then take off all the locking tools.
Rotate the crank clockwise x2 full rotations (the belt and pulleys should all move together) then put all the locking tools back on to ensure everything is align.
Remove all locking tools.

:alt

Bolt back on the blanking plate and vacuum pump using new gaskets.

:alt

Top up the coolant tank to the MAXIMUM level.

:alt

You will need to bleed the system so undo the 8mm bleed screw...

:alt

...until no air but just coolant escapes.

:alt

At the Alfaworkshop we then pressure test the cooling system up to x1 BAR (14 psi) to check there's no leakage from the water pump.
Top up the coolant to MAX and reasemble the car.



RETURN TO PART 1

Related Links: Servicing | Jacking up a 4C | Front geometry set up

Contact Us | General Interest | Alfa Insurance| New Alfa Romeos | Club Corner | Terms & Conditions | © Jamie Porter Ltd