What oil? And slight leak.

Jezza-7 · August 12, 2009, 03:26:53 PM

Im doing a complete service myself as my car hasnt had one for years. The engine has been run on fully synta gold SAE 5W-40. Does anyone recommend to keep using this oil?

Also found a slight problem with soemthing im not 100% sure what it is, got a slight oil leak coming from the area circled in red, but when i took off this rubber cap from the area circled in blue, there was alot of oil that came out. As you can see from the picure.

Is this the oil tempreature sensor? Does it just need a new rubber seal or something?

Nick_S · August 12, 2009, 04:03:30 PM

You should be using Synta Silver or any other decent 10w 40 oil. The gold is a bit thin and meant for modern engines.

Yep thats an oil pressure sender. For it to leak behind the boot, it could have cracked. If the copper washer had failed, then it would be running down the back of the cylinder head.

Jezza-7 · August 12, 2009, 04:15:46 PM

Ok i will get synta silver and thanks for helping me out with the leak problem. And it does run down the back of head. Cheers!

Jezza-7 · August 12, 2009, 04:25:20 PM

Is this something i should be looking for?

http://www.eurocarparts.com/ecp/c/Volkswagen_Polo_1.3_1992/p/Car-Parts/Engine-Parts/Fuel-and-Engine-Management/Engine-Management-Switches/?466440010&1&a68e7ad0c95e7b8c5e82c169518a2979ea49499e

http://www.eurocarparts.com/ecp/c/Volkswagen_Polo_1.3_1992/p/Car-Parts/Engine-Parts/Fuel-and-Engine-Management/Engine-Management-Switches/?466440030&1&ae8ed80899c642fddb6472705fa90492d5d2b3ad

http://www.eurocarparts.com/ecp/c/Volkswagen_Polo_1.3_1992/p/Car-Parts/Engine-Parts/Fuel-and-Engine-Management/Engine-Management-Switches/?466440020&1&50d4d9789a50da19fab033d2ae22014f4b797961

Notice the different switch pressure in bar? Is there a specific pressure one to get?

hayesey · August 12, 2009, 04:57:10 PM

you need to take the broken one off and see what's written on the back of it to see which one is it.

samg40 · August 13, 2009, 11:52:46 AM

I've had one of those switches leak in the past and it chucks a fair amount of oil out.

Jezza-7 · August 13, 2009, 01:35:33 PM

Yeah it does after a while. Mine has just started to go. The pressure on the bottom of the sensor is 0.15-0.45 bar. Cheers for your help guys.

Tommo · August 13, 2009, 06:21:20 PM

10/10 for circling the problem area!