Cerbera sump
Cerbera sump
Author
Discussion

Caduceus

Original Poster:

6,126 posts

295 months

Sunday 1st April 2007
quotequote all
Does the AJP (4.5) sump have a gasket, or do you just use silicone when putting it back?

Many thanks
Cad

longbow

1,610 posts

264 months

Sunday 1st April 2007
quotequote all
Silicone, same as nearly everything else apart from the head gaskets.

TT Tim

4,168 posts

276 months

Sunday 1st April 2007
quotequote all
Windsor! Welcome back, hope all's well.

Tim

Caduceus

Original Poster:

6,126 posts

295 months

Sunday 1st April 2007
quotequote all
longbow said:
Silicone, same as nearly everything else apart from the head gaskets.


As I suspected.
Thank you sir

longbow

1,610 posts

264 months

Sunday 1st April 2007
quotequote all
Caduceus said:
As I suspected. Thank you sir


No problem!

TT Tim said:
Windsor! Welcome back, hope all's well.

Tim


Thanks Tim, although not back just yet, just rear based to the Airport (internet central) at Basra awaiting my flight home next weekend. Can't bloody wait!!! How is the engine rebuild going? Told you it was easy huh hehe Well, can't wait to get the Cerb out soon. I've also got to start planning a supercar 1 mile sprint day for sometime in summer, should be a hoot. Might also do Le Mans, although it will be a last minute thing. The Cerbergring thing looks awesome, shame the car will be in for its headlight conversion at the time!!

BCA

8,651 posts

286 months

Sunday 1st April 2007
quotequote all
longbow said:
I've also got to start planning a supercar 1 mile sprint day for sometime in summer, should be a hoot.


bounce Keep us posted, I may also start picking your brain soon about "doing a longbow" with our chassis. hehe

Caduceus

Original Poster:

6,126 posts

295 months

Sunday 1st April 2007
quotequote all
Whlst this is still current, I need another question answering....
Although it has been confirmed from 1 mechanic and 1 enthusiast, I would appreciate the PH massive on this.

Are you NOT supposed to use a brass sump washer on an alloy sump, which the Cerbera has?
Apparently because the brass bites into the alloy and makes it almost impossible to remove the sump plug. Where a nylon one does'nt, but does the same job.

Your thoughts...

Thanks
Cad

Caduceus

Original Poster:

6,126 posts

295 months

Monday 2nd April 2007
quotequote all
Anyone?

longbow

1,610 posts

264 months

Monday 2nd April 2007
quotequote all
I used brass/copper washers on my sump bolts and they have been fine. Biggest mistake is to over torque them though, they only need to be tight enough so they don't come undone.

Caduceus

Original Poster:

6,126 posts

295 months

Monday 2nd April 2007
quotequote all
On closer inspection of my sump nut, the copper washer is compressed more on one side than the other.
And it WILL not come off. I have already split a socket piece trying to undo it. And I have done gazillions of oil changes over the years, but that has'nt happened before.

Taking the sump off looks like a bit of a bitch tbh. And all I wanted to do was make a 'between service' oil change.

Why does nothing ever go smoothly....

longbow

1,610 posts

264 months

Tuesday 3rd April 2007
quotequote all
Sorry, I didn't realise you wanted to take the sump off with the engine still in the car - you can't do this as it mounts through the front cover. In order to get that off, you need the engine out! It sounds to me like someone has seriously overtorqued the sump nut, causing it to distort. I'd get a good quality hex socket (six sided, not a pointed one) and then use a flame to heat the sump bolt boss a bit, or maybe get the engine up to temp. Use an appropriate breaker bar if required to undo the bolt as slowly as possible. Even if it shears, drilling it out shouldn't be too difficult, possibly repair by helicoil? If the washer is more compressed on one side, it is possible some numpty has cross threaded it!!



Edited by longbow on Tuesday 3rd April 05:47

TT Tim

4,168 posts

276 months

Tuesday 3rd April 2007
quotequote all
Caduceus said:
On closer inspection of my sump nut, the copper washer is compressed more on one side than the other.
And it WILL not come off. I have already split a socket piece trying to undo it. And I have done gazillions of oil changes over the years, but that has'nt happened before.

Taking the sump off looks like a bit of a bitch tbh. And all I wanted to do was make a 'between service' oil change.

Why does nothing ever go smoothly....


Sounds suspeciously like someone's used air tools to tourque up the sump nut. furious

Follow Windsor's advice, but if you have to drill it in situ, it sounds stupid, but don't forget you have a full sump of oil behind it so it'll get a tad 'messy'!

Good luck

Tim

350matt

3,897 posts

308 months

Tuesday 3rd April 2007
quotequote all
you can get some new jollop from loctite ( any industrial supplier should stock it) which is penetrating oil mixed with liquid nitrogen or something similar, basically it freezes the stuck fastener and the contraction allows the oil present in the jollop to get in and do its stuff.

Might be worth a go?

Matt

Caduceus

Original Poster:

6,126 posts

295 months

Tuesday 3rd April 2007
quotequote all
Thanks for all your replies guys. Much appreciated.

Cad