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> Engine tin behind pushrods
neyen14
post Sep 24 2025, 06:57 AM
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I am using 96mm cylinders and the "vertical fin" of tin that goes behind behind the pushrods is hitting the cylinder....


What has anyone else that has had this issue done?

Is there another tin option available for 96mm cylinders?

How drastic will trimming it affect cooling?

Thank you
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emerygt350
post Sep 24 2025, 07:04 AM
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QUOTE(neyen14 @ Sep 24 2025, 06:57 AM) *

I am using 96mm cylinders and the "vertical fin" of tin that goes behind behind the pushrods is hitting the cylinder....


What has anyone else that has had this issue done?

Is there another tin option available for 96mm cylinders?

How drastic will trimming it affect cooling?

Thank you


I just updated to 96mm from a stock 2.0 and the tin went on without issue. Not sure what you have.
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mate914
post Sep 24 2025, 07:35 AM
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QUOTE(neyen14 @ Sep 24 2025, 08:57 AM) *

I am using 96mm cylinders and the "vertical fin" of tin that goes behind behind the pushrods is hitting the cylinder....


What has anyone else that has had this issue done?

Is there another tin option available for 96mm cylinders?

How drastic will trimming it affect cooling?

Thank you


Please show us a picture.
Matt
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Geezer914
post Sep 24 2025, 09:54 AM
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I installed biral cylinders and had to trim the tin to fit. Runs cool.
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neyen14
post Sep 24 2025, 10:18 AM
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QUOTE(mate914 @ Sep 24 2025, 05:35 AM) *

QUOTE(neyen14 @ Sep 24 2025, 08:57 AM) *

I am using 96mm cylinders and the "vertical fin" of tin that goes behind behind the pushrods is hitting the cylinder....


What has anyone else that has had this issue done?

Is there another tin option available for 96mm cylinders?

How drastic will trimming it affect cooling?

Thank you


Please show us a picture.
Matt



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neyen14
post Sep 24 2025, 10:27 AM
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QUOTE(Geezer914 @ Sep 24 2025, 07:54 AM) *

I installed biral cylinders and had to trim the tin to fit. Runs cool.



Thank you. I was thinking if/when I trim it that it will be bringing the tin closer to the cylinder effectively suffocating air flow. Doesn't sound like you're having that issue.

thx you again
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mate914
post Sep 24 2025, 06:45 PM
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QUOTE(neyen14 @ Sep 24 2025, 12:18 PM) *

QUOTE(mate914 @ Sep 24 2025, 05:35 AM) *

QUOTE(neyen14 @ Sep 24 2025, 08:57 AM) *

I am using 96mm cylinders and the "vertical fin" of tin that goes behind behind the pushrods is hitting the cylinder....


What has anyone else that has had this issue done?

Is there another tin option available for 96mm cylinders?

How drastic will trimming it affect cooling?

Thank you


Please show us a picture.
Matt


Something looks wrong. What side is problem? Where is problem with fitment? 2056 air guides fit just like 2.0 or 17.
Matt


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mate914
post Sep 24 2025, 06:46 PM
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Wrong part?
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914sgofast2
post Sep 24 2025, 06:55 PM
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I would trim it so you get roughly the same amount of top clearance between the tin and the cylinder barrels as you had/have with the old cast iron cylinder barrels. VW and Porsche knew what they were doing when it came to designing the cooling system of these Type 4 engines.
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914sgofast2
post Sep 24 2025, 06:57 PM
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If the trim rubs against the new cylinder barrels, you will probably end up getting some weird noises from the engine when it's running and things start to expand and then contract during cool down times.
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neyen14
post Sep 24 2025, 07:35 PM
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QUOTE(mate914 @ Sep 24 2025, 04:46 PM) *

Wrong part?


That's what it seems like but I'm pretty sure it's the right part.... unless they were slightly different by size engines ?.... I have two sets and they match
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neyen14
post Sep 24 2025, 07:37 PM
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QUOTE(914sgofast2 @ Sep 24 2025, 04:55 PM) *

I would trim it so you get roughly the same amount of top clearance between the tin and the cylinder barrels as you had/have with the old cast iron cylinder barrels. VW and Porsche knew what they were doing when it came to designing the cooling system of these Type 4 engines.


Yes, I agree. Taking my time before measuring once and cut twice. Thx u
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wonkipop
post Sep 24 2025, 08:34 PM
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QUOTE(neyen14 @ Sep 24 2025, 07:35 PM) *

QUOTE(mate914 @ Sep 24 2025, 04:46 PM) *

Wrong part?


That's what it seems like but I'm pretty sure it's the right part.... unless they were slightly different by size engines ?.... I have two sets and they match


doubt it is wrong part. baffle plates are universal to all engines. 1.7, 1.8 and 2.0
just a left and right part.
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mate914
post Sep 25 2025, 05:33 AM
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Nothing on the engine changed size with the 96mm jugs.

Did you remove that baffle from a type 4 motor?

Matt
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neyen14
post Sep 25 2025, 05:53 AM
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QUOTE(mate914 @ Sep 25 2025, 03:33 AM) *

Nothing on the engine changed size with the 96mm jugs.

Did you remove that baffle from a type 4 motor?

Matt


Thx for the thought provoking help Matt.... it's the cylinders.... they're wider further down on the cylinder than the usuals. There's more fin surface area. Dang it....

I appreciate everyone's help
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emerygt350
post Sep 26 2025, 06:09 PM
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Well, at least you have more fun surface. However up higher might be more effective....
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porschetub
post Sep 26 2025, 11:29 PM
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QUOTE(Geezer914 @ Sep 25 2025, 03:54 AM) *

I installed biral cylinders and had to trim the tin to fit. Runs cool.

(IMG:style_emoticons/default/agree.gif) ,the op clearly has biral cylinders...never seen cast iron look like those,nice upgrade BTW.
Cut them after making suitable reference marks and take your time till they fit without touching the cylinder fins as mentioned, cheers.
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mate914
post Sep 27 2025, 08:29 AM
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QUOTE(neyen14 @ Sep 25 2025, 07:53 AM) *

QUOTE(mate914 @ Sep 25 2025, 03:33 AM) *

Nothing on the engine changed size with the 96mm jugs.

Did you remove that baffle from a type 4 motor?

Matt


Thx for the thought provoking help Matt.... it's the cylinders.... they're wider further down on the cylinder than the usuals. There's more fin surface area. Dang it....

I appreciate everyone's help


I learned something new also. Glad you got the fix.
Matt
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