hairline cracked sump.

[steve_k]

well after the past few weeks of trying to work out why the oil was leaking from the rear of the sump on my b27 it looks like i may have found the reason.

in the past few weeks i have had the sump off several times, replaced the gasket with a brand new one, even used some RTV sealant on it but still a drip when the front of the car is in the air,

well today while i was searching after replacing the gasket & keeping it in place with a dab of RTV i went round the back of it with some cheap degreaser (from the kitchen) & what do i find??

a hairline crack/split on the lowest point at the rear on the drivers side next to the bolt on the corner (about 5mm in between the 2 bolts).

so, looks like it's sump off (AGAIN!!!) & either get it ally welded & gummed up with plenty of JB weld.

why is it always the last place you look & never where you expect it??

[flybynite]

Bugger

Always the way

[steve_k]

Bugger

Always the way

tell me about it, fuming is an understatement

well i've cleaned it up as best i can, going to let it dry for a day then scuff it up with some 100grit sandpaper, degrease it again then break out the JB weld.

[flybynite]

tell me about it, fuming is an understatement
well i've cleaned it up as best i can, going to let it dry for a day then scuff it up with some 100grit sandpaper, degrease it again then break out the JB weld.

Got anyone local that could v out the crack and TIG it? While sump is off would only be a 5min job

[steve_k]

tell me about it, fuming is an understatement
well i've cleaned it up as best i can, going to let it dry for a day then scuff it up with some 100grit sandpaper, degrease it again then break out the JB weld.

Got anyone local that could v out the crack and TIG it? While sump is off would only be a 5min job

there's no one i know of round here who could TIG it for me,

i'll try the JB weld for the time being while i either find a new sump or someone who can TIG it up for me.

just a bit because of it.

[martauto]

Whats JB welding ?

Mart.

[steve_k]

Whats JB welding ?

Mart.

Its a metal putty, used it a few times over the years,

[martauto]

Is it suitable for more than just one material ?

Mart.

[steve_k]

Is it suitable for more than just one material ?

Mart.

It can be used on various substrate,

I've only used it a handful of time over the years so not much experience with it.

[Cloggy Saint]

Quicksilver is another option that I've had success with over the years.

[steve_k]

Quicksilver is another option that I've had success with over the years.

i'll have a look for that one, see if the local motor factors has got any in.

[steve_k]

well i made a start on the in situ repair to the crack.

drilled a small hole in the end of it to stop it going any further.
degreased the area thoroughly,

keyed it up with 100 grit sand paper,

used a very small amount of milliput to fill the crack then added a layer of JB weld,

going to eave it to set/cure then smooth it over & add another layer if needed, then leave it 48hr's before i refill with oil to see if it's worked.

only problem i ran into was finding out the gearbox mounts were FUBAR'd, good job i had some bolt through poly one's in the shed.

so they got changed while i was under there.

all in all not bad for a couple of hours work.

[paultv]

I've used Super Steel - I think Plastic Padding make it...get it from Halfords....had an annoying leak in the radiator where the drain plug fits...sealed it with SS about 3 years ago....solid.

I saw a clip on the tube where some geezer welded a diff with it...lasted about 10 minutes!!

Paul

[steve_k]

I've used Super Steel - I think Plastic Padding make it...get it from Halfords....had an annoying leak in the radiator where the drain plug fits...sealed it with SS about 3 years ago....solid.

I saw a clip on the tube where some geezer welded a diff with it...lasted about 10 minutes!!

Paul

I know the stuff you mean but couldn't find any.

Welded a diff with it?

Well if all else fails I've got some belzona 1511 ill use instead,

Alit qint cheap so I'm leaving that as a "just in case" measure.

If all else fails, new sump.

[steve_k]

well just been out to check on the milliput in the crack & that had cured nicely,

sanded it back so it's all level, keyed it with some 80 grit,

mixed up the JB weld & set to covering the milliput with it making sure to give it a good even coat,
just got to wait 24hr's now for it to fully cure & uf need be i might give it a 2nd coat just to be sure,

hopefully by the weekend i'll be putting the oil back in & fingers crossed there's no more drip.