Author Topic: How to determine if your 1.6 Turbo Diesel oil pump is bad? (Read 15711 times)

VW · « **Reply #15 on:** February 08, 2008, 09:04:33 pm »

OK, well I want to try replacing the pump first as it won't hurt to have a new pump (especially a High Volume one) and since I have to open the pan to inspect the pick up screen I might as well change it. Can you recommend where I can order a 36mm Pump? It will be several months before I can tear down the engine long enough to swap out the bearings so for now I will hope to buy some time.

I really want to save my money for 1.9L IDI rather than invest to much in my 1.6L.if I can and just need to get my 1.6 to last until the end of summer or maybe just before winter.

Thanks

Dewey · « **Reply #16 on:** February 09, 2008, 11:47:27 am »

Quote from: "VW"

I use 15w-30w now.

Thanks

Before changing pumps and everything, i'd change that oil, and use a proper filter, as others have already recommended doing.

15w40 or mabye a 15w50.

My old gassers would set the light and buzzer off when i used 10w30, changed to 10w40 and never came on again.
Cheap and simply solution.

Dewey · « **Reply #17 on:** February 09, 2008, 02:22:02 pm »

Quote from: "libbybapa"

After 10-15 minutes he's at 1-2psi at idle.
Andrew

ahh i missed that part.
If thats the case it may just be the cheap temporary bandaid fix he is looking for.

VW · « **Reply #18 on:** February 09, 2008, 10:08:47 pm »

I will try the 15w-50w and a Mann filter first. I do a lot of driving. I will probably put another 5000-10000 miles on the engine before I pull it so I hope it can last that long.

I like this site a lot, you guys really are very helpful and not condescending like some other sites. You all deserve some serious pats on the backs:)

Thanks everyone.

jtanguay · « **Reply #19 on:** February 09, 2008, 10:26:40 pm »

Quote from: "VW"

Sorry it has been awhile since I have updated this but I parked the car until now to make sure it won't get worse until I had the chance to install the pressure gauge.

So I had installed it today and here is what I have to report.

Cold (just started up) the pressure was almost 40 at the head at idle.

3-4 minutes later the pressure was down to 20 at idle.

10 minutes later it was down to 1-2 at idle.

Now if I am driving down the road in 5th the pressure is about 20.

What does this mean? Is my Oil Pump hosed??

Thanks

hmmm so you only tested at the head? any testing done at the flange? the flange should read a different (higher) pressure. try that

VW · « **Reply #20 on:** February 10, 2008, 08:31:24 am »

What flange? I will check it as well and report my findings.

Thanks

jtanguay · « **Reply #21 on:** February 10, 2008, 11:18:06 am »

oil filter flange. take off the oil pressure sender and install your gauge there. oil pressure should be quite a bit higher there.

Vincent Waldon · « **Reply #22 on:** February 10, 2008, 04:41:51 pm »

The flange is where you can measure for the one official oil pressure spec VW give:

2 bar (29psi), at 2000 RPM, with the engine at normal operating temperature (rad fan has cycled once).

Having said that, 1-2 psi at the head is pretty darn low, regardless of what you read at the flange.