Crankcase breather - vitesse

[iana]

I'm in the process of reinstating the engine block breather pipe - I need to locate a couple of gaskets (124954), a baffle (128870) and the mesh wire infill (129101), I assume that these parts are long out of stock, the gaskets I will make using gasket paper, the mesh infill is a coarse wire wool, any ideas on the baffle plate - I am thinking about making one out of a thin plate (copper or aluminum) and drilling a series of 1mm holes.

Another idea is to use something like:-

https://www.ebay.co.uk/itm/30-Mesh-304-Stainless-Steel-Woven-Wire-Cloth-Screen-Filtration-Filter-5-9x11-8/233289109162?_trkparms=aid%3D1110001%26algo%3DSPLICE.SIM%26ao%3D1%26asc%3D40732%26meid%3D4113251464b8478a895de27247bf9da4%26pid%3D100005%26rk%3D6%26rkt%3D12%26sd%3D303132774901%26itm%3D233289109162%26pmt%3D0%26noa%3D1%26pg%3D2047675&_trksid=p2047675.c100005.m1851

This would then be bedded in a hylomar or similar sealant and fixed to the block.

Open to suggestions.

[68vitesse]

Is this a 1600 or 2L?.

Regards

Paul

[iana]

I’m fitting it on a 2l early Mark 1

[Pete Lewis]

The mk1 2ltr  had this blanked the 1600 has the tubed low level breather  Dave would know more about the evolution but I would expect a mk1 to had the port blanked and semi sealed breather and smiths valve on the inlet manifold ?????

Do you have gauze filled  oil   filler cap  or  semi sealed one ??

The low tube breather needs a filtered breathing filler cap   the smiths valve has a semi sealed cap filler

Pete

 

[68vitesse]

I have a very early small bearing 2L engine, not currently in use, this has as Pete says the block breather point plated over and the smith valve arrangement.

Regards

Paul

[Pete Lewis]

Iana  ,   So now we need the engine number  ???

Pete

[iana]

The engine has a blanking plate currently fitted, however the car is fitted with Su carbs with a very odd breather set up, my plan is to vent the carbs into the rocker box as per a spitfire, use the crankcase breather from a triumph 2000, and remove the smiths valve arrangement. The manifold take off will then feed the brake servo. And as a final adjustment I will revert to a near standard air box setup (I’ve got an air box that will fit on the su’s)

[Pete Lewis]

then you still need the port in the crankcase being blanked   or its will just suck air thro and over weaken the carb mixtures 

the idea is is sealed witha light vacuumed extraction into the  SU carb bodies

i had a couple of  local  Vits with SU and all ran better when reverted to Strombergs and correct needles 

pete

[dave.vitesse]

The SU's don't vent off into the crankcase, it's the other way around. The SU's maintain a low depression in the crank case. i.e. Closed Circuit Breathing System. This is why the crankcase breather is blanked off.

Dave

[iana]

Dave thanks for that photo, thats a similar setup to what I had on my GT6, so in theory I can connect the carbs to the ocker box as the photo. and then the servo off the manifold?

 

[68vitesse]

I used a 16mm Banjo fitting and a 5/8 unf banjo bolt in the smith valve take off point for my servo the second banjo is for the valve.

Regards

Paul