Sunday, November 29, 2009

Simple knowledge on Waterpump

We found there are some habit from foreman or end consumer when they go to the parts shop to buy the waterpump assembly for their car.

Once the shop give them the waterpump they wanted, first, of course they will open up the box and check the condition on the waterpump, that is normal.

Secondly, they will start to turn the waterpump fan on the pulley side of the waterpump to check if the fan are moving smoothly, we can say that nearly 100% will do this kind of action, and most of us may think it is all right to do this.

For your info, there are mechanical seal install inside the waterpump where the area of the waterpump fan is turning. This type of mechanical seal is to prevent the leakage of water in that area, and don't be surprise that it work more effective when it had water inside.

By turning the waterpump fan without any water as medium in it, will scratch the mechanical seal of the waterpump, hence damage the surface of the mechanical seal which will cause it life span more shorter and leakage will occur sooner than it normal will be.

Friday, November 27, 2009

K3-VE and 2SZ-FE Cylinder Head Gasket

Daihatsu K3-VE engine and Toyota 2SZ-FE engine is very similar, there are 3 type of model which using this engine in Malaysia market, which is Perodua Kembara DVVT, Toyota Avanza 1.3 and Perodua Myvi 1.3.

Since the O.E.M. type of cylinder head gasket for this type of engine is very thin, many of the maintenance personnel is having a problem to effectively seal the oil passages through the engine block. Hence they try to use the Graphite or Silicone type of gasket instead of their original design is metal type of gasket.

So what is the actual problem cause of this kind of sealing problem, as some had commented that the O.E.M. type of gasket, there are additional combustion ring that sitting near the round shape of piston area, which actually made the area become 3 layer instead of 1 layer at other place of the gasket. (See the above picture)

Tuesday, November 17, 2009

Mitsubishi 6A10 Engine

We are all know that Malaysia Proton Perdana V6 model is using the Mitsubishi 6A12 type of engine, but the engine modification maniac had try to install Mitsubishi 6A10 type of engine into the Proton Wira which initially may only content the 4G15 and 4G92 engine.

6A10 Type of engine is originally install on Mitsubishi Lancer V6 with the body code of CB6A, although this type of engine only have the capacity of 1,600cc, but their horse power is more than those in same cc 4G92 engine.