Serck Intercooler

The Intercooler (air charge cooler) on Perkins T6.354 Low Line 175Hk don't demand much attention and does normally not refuse to work. Though it might happen that seaweed and other impurities gather, especially of course, if the raw water strainers not is effective! Furthermore oil from the turbo can gather in large cakes on the cooling ribs which will block for an effective cooling of the charge air.

It might therefore be opportune to dismantle the intercooler for inspection. When dismounted, unscrew the two end covers and the tube stack will appear. Immediately after this you'll see if seaweed and other impurities are blocking for the flow of raw water. No violence must be used dismantling the tube stack. If it doesn't come easy, a plate can be placed over and light blows with a (rubber) hammer might get it out. Place if necessary, the entire intercooler in very hot water for some time, and then try again! When the tube stack is removed, place it in hot water or solvent and then blow it clean with a high pressure cleaner.

When the intercooler is reassembled, one has to be aware of the notch in the tube stack, as it has to be placed outside the draw of tap on the end cover. This will partly ensure that the raw water can be drawn of, partly that the tube stack is placed correctly inside the aluminium casing and that the charge air is not led beside the cooling unit (tube stack). And now the most important: Use new and intact O-seals when reassembling, and be careful that they do not get trapped! If the O-seal (inward ø115mm x 4) for one reason or another is not tight, salt water gets in touch with the aluminium casing and following a decomposition is started, which might lead to leak in to the charge air and in the worst case can lead salt water into the cylinders.

...........and this is no laughing matter, which the photos here illustrates, giving a way of repair.

2004

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