look at my oil pump bolt

[Nankas]

I recently replaced my oil pump bolt. I was just cleaning up and picked up the old bolt that i had removed and cleaned it up a bit. Look at what i found. Instead of putting myself at rest i now have a concern that the thread in the pump is screwed. What are your thoughts as to whether i need to redo the bolt again and possible retap the thread in the pump. Has anyone come across this.

Regards

Nankas
/Users/paulnankervis/Pictures/iPhoto Library/Originals/2010/18:02:2010/DSC_0836.JPG[PHP]

[Graeme]

My old bolt looks perfect. I'd be replacing the pump, either with a good s/h one or a new one, and as a priority too.

[Nankas]

Thanks Graeme,

I have started looking into it. So far $600 for s/hand pump and $200 labour. Has anyone had the thread in their pump re tapped. Marty at Deacons recons that the thread in the pump is hardened steel and difficult to re tap.

Regards

Nankas

[p38arover]

Thanks Graeme,

I have started looking into it. So far $600 for s/hand pump and $200 labour. Has anyone had the thread in their pump re tapped. Marty at Deacons recons that the thread in the pump is hardened steel and difficult to re tap.

Regards

Nankas

If that's the case, the thread in the pump maybe OK.

[Graeme]

You could remove the new bolt and see if there's any deformation of its thread. If not, the shaft could be OK and the previous (perhaps not original) bolt was overtightened.

[Lotz-A-Landies]

All I can say is it's a good thing that you have replaced the last one.

You don't get much warning between when the pump fails and the engine is ruined.

[Nankas]

Yes, i think it might be a matter of doing it all again, inspecting the thread inside the shaft and taking it from there. I will not have peace of mind with this hanging over my head. The question now is will i need to remove the pump to inspect the thread?

[Urban Panzer]

Was the bolt lose, if it was and it was "chattering" around in the pump, and the Pump is harder steel, that may have "flattened" the thread as well

[Blknight.aus]

run a thread cleaning tap into the pump housing.

if it screws in by hand to full depth then you have nothing to worry about.

[slug_burner]

If the replacement bolt has gone in ok I don't know that you are going to get much more info by running a tap. If you used loctite I would be tempted to leave it in there.

[Nankas]

The original bolt was firm however didn't need any effort to undo. The new bolt seemed to screw in fine and had the loctite applied.

[Blknight.aus]

If the replacement bolt has gone in ok I don't know that you are going to get much more info by running a tap. If you used loctite I would be tempted to leave it in there.

the thread cleaning taps are generally more precisely made than a bolt, have only about 3 turns of thread and are not designed to cut a thread.

you get an excellent "feel" for the condition of the thread for the whole length. (you can tell if its too loose by the freeplay or too tight if you cant spin it by hand)

it also clears out old loctite if there was any.


But I also miss read the post and didnt think hed put it back yet.

if the new bolt went in correctly with the right loctite, torqued up correctly and was allowed to cure before getting used or bathed in oil then you have nothing further to worry about. Your Oil Pump Bolt is Done and Dusted.

[Nankas]

Thanks Dave,

The bolt i used was supplied with loctite, i did not realise that it still needed time to cure. Having said that it was about 6 hours between being screwed in and oil being added (had to go to the kids school to help out).

[justinc]

I'd be tempted to run a tap into the pump, then replace the bolt with a new one, use loctite and all will be fine:)

(Any relation to Brian N?)

JC

(edit: just read you have already fixed it! :) )

[Nankas]

Thanks Justin,

My wife thinks i am truly in love with my new to me 2000ES TD5, I just want to sit in it, touch it, play with it. For my own peace of mind i am leaning towards checking the thread. This car will be taking the family all over Australia, i don't want that bolt to be haunting me.

BTW no relation, grew up seeing him in melbourne pubs throughout the 80's though

Regards

[justinc]

Ah I see the D2 illness has really set in:D.

I want to hug and hug and squeeze my Rangie too, but alas it is too tall, and I am too short...:(:p

Yes he is a bit of a character:D, never saw him 'live' but enjoy the performances I have seen and especially Rockwiz:cool:

Tripping around this country, family in tow in a LR is a great goal, when are you guys thinking of escaping?

JC

[Nankas]

Our first big one is April next year. From Melbourne up the centre, across the top to Queensland and then down. 10 weeks away with the campervan in tow. In the meantime we are doing lots of shorter trips all over Vic and into NSW. The year after we will do the west.

[justinc]

Have you posted up pics of your camper etc? I'd be interested to see your set up. Are you going via the Tanami road to NW, or Stuart Highway?
That will be a great trek.:)
Are you coming down to Tas at any point?

JC

[Nankas]

That detail is not sorted yet however the Stuart highway will be our friend on many occasions. We are getting lots of input from friends and family. Tassie is definitely on the agenda the wife would prefer sooner than later.

As far as pics go i haven't uploaded any yet as this car is a bit of a project for me and i was waiting till i finished all the work that needed to be done before i tell the story.

Having said that i will upload a pic of my new baby. I like projects and the campervan has been one as well, i have practically rebuilt it.

[Blknight.aus]

Thanks Dave,

The bolt i used was supplied with loctite, i did not realise that it still needed time to cure. Having said that it was about 6 hours between being screwed in and oil being added (had to go to the kids school to help out).


like i said Done and Dusted....

most thread locking loctites have a 15 minute contact/skin time as in once you put the bolt with the loctite in the hole you have 15 minutes with which to work before the loctite skins, if you disturb the bolt in the 15 minutes to 1 hour window you should pull the bolt clean it and re-loctite it. 1 hour is the usual useable setup time at room temp with a nominal amount of loctite applied. more time for a colder environment or excessive loctite and less for a hotter climate and lesser amount of loctite. Full cure can take as long as 48 hours but most loctites are done and dusted in the 8-12 hour window.

(being warey of course that not enough loctite is about the same as not putting it in the first place)

[Nankas]

Thanks again Dave,

What you say makes sense, thinking back While the bolt was removed i did clean out the shaft and could see the thread with the work light and it did look ok. It was my first go at anything more than changing the oil so i am nervous about my workmanship. Having you guys in the forum to debrief me has been extremely helpful.

Regards

Paul