Ital 1275 timing cover filter

[Martlin]

Lots of posts how the filter on the timing cover needs to have clearance for the fan.
O.K, if I cut the filter as in previous posts and have to make a plate to fit,is welding the only option of attaching said plate?
I am useless at welding,but love to fix things myself,is it possible I could glass fibre the plate in position?
Probably depends how much pressure is present.
Any ideas?
Many thanks,
Martin.

[pgp001]

Hi
It should in theory be under a small vacuum if the system is working correctly, it also needs to be oil tight as the canister is there as an oil trap to catch any mist and let it run back into the engine.

Phil

[paul 300358]

The other option could be to fit an electric fan.

[philthehill]

I would not even try and use fiberglass to make the flattened cover for the breather. In my experience oil, metal and fiberglass do mot mix.

Just buy the correct cover with the flattened front face and be done with it.

http://www.minispares.com/product/Class ... o%20search

You may be able to find a timing cover as above off 'e' bay.

You can also fit a fan spacer. They come in different thickness so that you can ensure adequate clearance between fan and radiator.

http://www.minispares.com/product/Class ... o%20search

Fitting a spacer (or multiples of thick and thin spacers) you may well be able to get away with doing nothing to the timing cover.

[Martlin]

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Just about to trim fan blade to clear breather,to me,best of all options and cheapest!
By the way,doe’s my carb look big in this?

[Murrayminor]

The problem with cutting the blade is it may run out of true and cause unwanted vibrations which could have consequences elsewhere.
For the sake of £40 I would fit the flattened case knowing it was right.

[philthehill]

Modifying the fan blades can be dangerous.

Fit the spacer(s) if cost is a problem.

If the fan disintegrates it will cost a lot more than £40.

There should be a stiffening plate (Pt No: 2A803) fitted on the front of the fan blade. If the plate is not fitted the fan blade are prone to cracking from one or more the four 1/4" UNF bolt holes.

[Martlin]

Thanks for getting back,
Luckily I have accurate measuring equipment and will carefully remove equal amount of metal from each side of the blade to maintain balance.
I have seen a previous post where a member has done this without any problems.
Spacer would be better,but I understand that the 1275 engine is a bit longer,and concerned that with a spacer fan may foul the radiator.

[philthehill]

On the other side of the coin

viewtopic.php?t=41395

[Martlin]

Yeah,O.K,now have all the information I need.
I am going to fit an electric fan and also maybe gain a couple of horsepower.
Thanks for advice guys.
Martin.

[Martlin]

Just about to re-fit timing cover now I have decided to use an electric fan.
Question is should I just use grease or Hylomar on sealing gasket?
Cheers,
Martin.

[paul 300358]

I used grease and it has not leaked, obviously you will fit the pully before fully tightening the cover bolts to align the seal correctly.

[philthehill]

Lightly greasing the gasket is the way to go every time.

[Martlin]

That’s great advice once again,good tip about fitting pulley before tightening case bolts!
Martin.

[philthehill]

Fitting the crankshaft pulley centralises the timing cover/seal around the pulley before the timing cover bolts are tightened.
There is a special BMC/Churchill tool (Pt No: 18G 1044) for centralising the seal/timing cover but the pulley is just as good.
As I have been unable to purchase the 18G1044 tool I have taken a multipiece riveted crankshaft pulley and removed the fan belt drive flanges and ensuring that the crankshaft hole is a sliding fit over the crankshaft nose it serves the same purpose. Not having the fan belt drive flanges make for easier fitting/removing and handling.

As an aside a set of genuine Churchill seal removal and fitting tools comprising 18G 134 and 18G 134BD went for over £190 on 'e' bay recently