Surf LN130 turbo lights - advice needed please

[surf_tomo]

Hey. I have a Small problem with the turbo lights on my surf. Some times both come on (green and orange) but nearly always the orange one is on when the engine warms up - and stays on. The turbo doesnt seem to be over boosting??? My mechanic seamed to think their was no problem but i still want to make sure. Maby a dodgy connection or wireing im really not to sure. Any help would be great???

I really dont want to blow my baby up so thats why im a little concerned

cheers.

[Henry]

Hi

how do you know it is not over boosting? do you have a boost guage?

[surf_tomo]

Hi - no I dont have a boost gauge, the truck just seams to be driving normaly etc.. not going like a rocket ship

However I see your point, this may be no idication at all with regards the turbo boost, i am not sure

cheers

[Henry]

So my question is why does your mechanic say you don't have a problem?

Lights normally mean some thing. I am not sure but I think you have lights for boost and EG temp.

I would think at the least the mechanic would have to set up a boost and pyrometer (measures EGT). Then done a test drive.

Too much boost will damage things. IE the waste gate is not working properly.

High EGT will damage the turbo, pistons etc. this could be as simple as a blocked air filter.....

Have you looked on http://www.ih8mud.com ?
Some very good ideas on their forums.

I don't have a surf but for a mechanic to say that the light on is not a problem is a bit dodgy in my opinion.

[Petemcc]

the orange light is the over boost light, if both are coming on at the same time then it might be a faulty sensor. When i had my old 2lt the orange light would come on when i got above about 2000rmp. replaced the wastgate actuator i think it was and it fixed it.

Pete

[DIRTY74]

would recomend fittin boost gauge. wastegate actuators failing are fairly common on 2lt. but if orange light comes on at start up is more likely to be a sensor or vacum fault.
cheers wayne.

[SupraLux]

sounds like a sensor fault, if it was actually overboosting then the orange light would only come on under boost.

In the earlier ones I believe the sensors are 2 tube things about the size of 35mm film cartridges on the side of the air filter housing - not sure with the later ones, could be the same.

Having had a faulty wastegate actuator in my old Bundera a few years back, I can tell you there was no appreciable difference in power so don't take that as any indication... 30lb's of boost still probably wouldn't make those engines go any good

Steve

[surf_tomo]

cheers everyone - some very helpfull info here thanks heaps

most likely a sensor problem but am checking it out.

cheers