Integrale + Snow = ever so much fun.
Scot,thanks for the heads up..
I have now made my own gaskets..Its time consuming but I know that they are dimensionaly correct..
I think I may as well start posting what I believe is going to be my ultimate d.i.y headgsket solution for even the most severe duty engine..
Ive e-mailed the concept to a few knowledgable persons and have had some good feedback.thanks guys..
I decided on copper as the previous setup using a std. gasket was a total buggerup.This is on a high boost 4 cyl engine..
I have never played with copper gasgets beore as I felt them to be a bit agricultural..Now that Ive used it,Im rather convinced as to the feasability of copper in its annealed state..
I machined reciever grooves in the sleeves for a stainless ring that is machined in an "L" shape.The pic says it all.
The "L" shaped groove protrudes through the copper gasket by 0.3mm.
This is designed so that the single groove or ridge can cut into the haed as its all torqued down.The ring is also 0.2mm thicker so it protrudes more that the Alfa sleeve protrusion spec.This is so it can clamp the copper gasket more vigiourisly..
The idea here is to have a twofold clamping effect.The first is the copper gasket being clamped in the normal fashion,ie: between the head and sleeve..Secondly,the ring or ridge that protrudes through the copper gasket and cuts into the head surface..
I have now made my own gaskets..Its time consuming but I know that they are dimensionaly correct..
I think I may as well start posting what I believe is going to be my ultimate d.i.y headgsket solution for even the most severe duty engine..
Ive e-mailed the concept to a few knowledgable persons and have had some good feedback.thanks guys..
I decided on copper as the previous setup using a std. gasket was a total buggerup.This is on a high boost 4 cyl engine..
I have never played with copper gasgets beore as I felt them to be a bit agricultural..Now that Ive used it,Im rather convinced as to the feasability of copper in its annealed state..
I machined reciever grooves in the sleeves for a stainless ring that is machined in an "L" shape.The pic says it all.
The "L" shaped groove protrudes through the copper gasket by 0.3mm.
This is designed so that the single groove or ridge can cut into the haed as its all torqued down.The ring is also 0.2mm thicker so it protrudes more that the Alfa sleeve protrusion spec.This is so it can clamp the copper gasket more vigiourisly..
The idea here is to have a twofold clamping effect.The first is the copper gasket being clamped in the normal fashion,ie: between the head and sleeve..Secondly,the ring or ridge that protrudes through the copper gasket and cuts into the head surface..
- Attachments
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- Here can be seen how well the clamping is between the head and sleeve..This is the copper gasket ,sprayed with ally paint..
- DSC00101.JPG (148.6 KiB) Viewed 6401 times
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- Her the groove from the irdge can be seen
- DSC00100.JPG (152.42 KiB) Viewed 6403 times
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- Protrusion of the ring ridge...
- DSC00096.JPG (137.11 KiB) Viewed 6403 times
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- The "L" shaped stainless ring..
- DSC00106.JPG (135.9 KiB) Viewed 6404 times
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- Reciever grooves in the sleeves..
- DSC00108.JPG (153.46 KiB) Viewed 6405 times
If you've see or tried this then disregard.
I think the big hp drag engines here they use "O" rings around each cylinder. they go in a groove machined into the block (or sleeves in this case). I think they are made of a soft (relatively) grade of stainless.
these engines make 2000+hp with superchargers and nitromethane fuel.
Your "L" rings are a similar approach but a square or round section ring may be simpler to deal with.
just an idea,
Scott
I think the big hp drag engines here they use "O" rings around each cylinder. they go in a groove machined into the block (or sleeves in this case). I think they are made of a soft (relatively) grade of stainless.
these engines make 2000+hp with superchargers and nitromethane fuel.
Your "L" rings are a similar approach but a square or round section ring may be simpler to deal with.
just an idea,
Scott
-
Maurizio
- Verde
- Posts: 680
- Joined: Wed Dec 01, 2004 4:49 am
- Location: the Netherlands, 153.1km from the N'ring :-)
I 've used a similar pincing technique in vacuum appplications, between flanges. Which is more or less standard for the real deep (<10^-6) vacuum chambers. The copper used was 99% pure and oxigen free (hard to find).
Banned.. ? 
Daily donky.. ==> BMW 325d 
E36M3 (3.0) Ringtool
==> definitely BANNED!
AR 75 TS Ringtool '90, AR Spider 2000 veloce '79
Daily donky.. ==> BMW 325d E36M3 (3.0) Ringtool
==> definitely BANNED! AR 75 TS Ringtool '90, AR Spider 2000 veloce '79
Like a good roll in the sack!!!!! The best yet,H..Ive already made for Bella..She is getting some as well..Hamishm00 wrote:Barry wrote:I went to a local steel merchant and asked for a sheet of copper 1.2mm thick.
I have no idea what the grade is..
Bb, are they working????
French cars are shit and shit expensive to service and bloody awful and unreliable and expensive and friends don't let friends drive french cars and you wait years for parts.
Original as a template..
Its rather hard,so you can drill and cut..carefull though,copper tends to grab and snatch with power tools..
Its rather hard,so you can drill and cut..carefull though,copper tends to grab and snatch with power tools..
French cars are shit and shit expensive to service and bloody awful and unreliable and expensive and friends don't let friends drive french cars and you wait years for parts.
Discussed with a friend and he suggested water or laser cutting..didnt think of that. Also suggested a parts dealer from Finland, will check that one upBarry wrote:Original as a template..
Its rather hard,so you can drill and cut..carefull though,copper tends to grab and snatch with power tools..
The milano very sold, some day some other Alfa...