3TGTE Oil Pump replacement - keeps blowing oil filters

[ta23]

Hey,

Was wondering if anyone here knows how labour intensive it is to replace an oil pump in a 3TGTE. My car is currently at a workshop, it has blown 2 Oil filters since it has been there and the mechanic said that the oil pump is at fault.

I was wondering if anyone knew how long roughly it would take to replace, just so I know roughly how much this visit is gunna cost me.

Thanks,
Mitch.

[jonra23]

Unlikely to need a new oil pump, it is obviously up to the task if it can split a filter.

More likely cause would be a stuck pressure relief valve, remove and clean.

regards
jon

[slide86]

i agree, you should be able to remove the relief valve without removing the pump. there will be a big bolt or allen key bolt on the pump. the valve and spring should be behind that.

[YelloRolla]

take sump off. One bolt holds the pump in place. replace sump.
Take about 1hr if the sump is easy to get at (allowing time to scrape any old gasket and clean the sump gasket surface prior to refitting the sump).

[styler]

what pressure are you running at - check with gauge. the pump has a pressure relief valve and maybe thats not working properly.

the oil pump is in the sump, so you will have to take off the sump to get to it.
you might only be able to take off the sump if the engine is suspended or out the car.

the dummy shaft drives the oil pump and the distrubutor slots on top of the oil pump to drive itself, the dizzy will pop out easily (no need to though) and i think the oil pump will pop out and hopefully not be held in by the dummy shaft. if it is then the dummy shaft will have to come out.

some ideas:

replacement pumps probably cost a lot if specifically for a 3tgte. the 2t series of motors will accept other 2t series pumps i but they flow slightly different rates and pressures.
so maybe you can use a 2t series of pump.

maybe a 3t pump will fit the 3tgte but not flow as much or it maybe it flows the same?

a 2tgeu pump flows better than 2t pump if it fits.

3tc high pressure pumps avaliable via america for about $150USD

well a few hours at least plus oil, filter, and a new pump maybe $400

[ta23]

Thanks for the info guys, much appreciated, will have to get in contact with the mechanic to see what his thoughts are...

If anyone else has thoughts on what this could be please feel free to post up here... dont wanna get a new oil pump if thats not the issue.

Thanks,
Mitch.

[allencr]

Unless the oil pressure relief valve is an integral part of the oil pump on a 3T, I'd stay away from any mechanic that tells you it is an 'oil pump' problem.

Also, how'd the filters blow?? The seal, base crimp, or housing??

[cambelt]

This is not the first T series motor i have heard splitting oil filters , the releif valve in these sludge up and stick, i have fixed 2 in the last 10 years
Dave

[YelloRolla]

Unless the oil pressure relief valve is an integral part of the oil pump on a 3T, I'd stay away from any mechanic that tells you it is an 'oil pump' problem.

Also, how'd the filters blow?? The seal, base crimp, or housing??

yes it is integral,
as pointed out above a simple dismantle, inspection, clean an rebuild (of the relief valve) should do it.

[ta23]

Thanks for all the info and help..

How long should this take to clean out the relief valve?

Also is this relief valve part of the oil pump or will it be found in a different part of the motor, just wondering whether the mechanic will still need to take off the sump and everything.

Thanks,
Mitch.

[ta23]

Unless the oil pressure relief valve is an integral part of the oil pump on a 3T, I'd stay away from any mechanic that tells you it is an 'oil pump' problem.

Also, how'd the filters blow?? The seal, base crimp, or housing??

Yea its just blowing the seal of the filter

[YelloRolla]

Also is this relief valve part of the oil pump or will it be found in a different part of the motor, just wondering whether the mechanic will still need to take off the sump and everything.

yes it is integral,

It is integrated in the oil pump. 1 x bolt holds the relief valve spring and plunger. It is shown quite clearly in the 2T/3T maintenance manual.

How long should this take to clean out the relief valve?

10 mins with a can of carby cleaner.

Foot note - the gears in the 3T GTE pump are the same size as the ones in an 18R-C (and prolly all 18R derivitives).

[The Witzl]

Foot note - the gears in the 3T GTE pump are the same size as the ones in an 18R-C (and prolly all 18R derivitives).

The 18R pump gear is actually shorter than the 18R-G pump gear by about 3mm. On the 18R-G the two "ends" of the pump housing are mated with a spacer to fit the taller gears.

This then makes me intrigued about these performance 3T oil pumps from the states...... unless they are just 3T-GTE oil pumps



as for helping you find the relief valve... here is an oil pump from an M series engine, very similar.

[ta23]

Hey,

Well thanks guys for all your help, has been excellent. I mentioned all this to the mechanic, he has since pulled the sump off and found that the relief valve in the oil pump is too loose, therefore sometimes it gets jammed shut. He has said it will need a new oil pump because of this...

I have tracked down a second hand oil pump, so all should be OK now.

Cheers,
Mitch.

[ta23]

This is the Oil pump I have found to buy, from the photos does it look like the whole oil pump assembly?

http://img528.imageshack.us/img528/7039/dsc00020aa6.jpg