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Coolant
Why might my Porsche need a Coolant Line Pinning Service?
First, the Mezger engine which is in the GT1, 996 and 997 is the engine which in some cases may need a Coolant Line Pinning Service.
The reason why is this engine was produced after the stellar 964 engine which was air cooled. They started with the same engine block and built on to it.
One of the things they added was water cooling, because it was an add on to an existing engine (the 964) they ended up bolting the cooling system to the outside of it.
Not the best way to add a cooling system, BUT it was the most efficient.
These cooling housings they added on GT1 orMezger engine are made of up aluminum but have steel fittings for the hose attachments.
This is a weak point in the otherwise VERY reliable Mezger engine. Those steel fittings are glued in the aluminum housings and over time heat from the engine breaks down the glue.
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As you can imagine when the glue is weakened the fittings push out of the housing with the attached hose.
After this happens the coolant that keeps your engine cool will shoot out of your engine and get all of over your engine and sometimes rear tires.
Not to mention the loss of coolant raises your engine temperature which can lead to a chain reaction of components overheating then failing in your engine. Resulting in major engine work.
Fast forward a bit, Porsche owners wanted a solution. They and us love the Mezger engine, but need to fix this weak spot in the engine.
This is why the Coolant Line Pinning Service for the 996, 997 and GT1 was born.
What is the Coolant Line Pinning Service?
By pinning the coolant line it eliminates the issue of the glue breaking down and your coolant hose being ripped off the engine and causing big repairs.
Is The Pinning Service For Racing/ Track 996 And 997s Only?
This does not only happen on the track, but under road conditions as well. On the road, leaks will develop as the adhesive that holds those aluminum tubes in begin to break down and fail.
On the track and under other high load / high rev conditions, its more catastrophic – they’ll just blow out spreading coolant all over the track. (Many track organizations won’t even allow one of these models on the track, unless that pinning service was performed.)
We HIGHLY recommend a pinning service on the 996 and 997 Mezger engine so you can bulletproof the only soft spot to this powerful Porsche engine.