3.9 v8 low oil pressure . gurus help needed

thanks ,im going to do the conrods once ive done the mains , so the bearing with the flanges both fit on the center one no 3 , but the bearing lug is slightly of and wont sit in the journal , im can file down the bearing lug so it locates but not sure if I should.thats the lower journal not the top

the lugs are anti rotational tabs and are essential

this is what I mean ?it dose say lower on it aswell and its the right journal no 3

it is a lower one as it has no oil feed hole but not right fitting

ok looks like its been made wrong then , its strange because the no 3 one lower didn't have the flanges on it , it was just a normal one .

have you got the right set for engine

I presume so , I bought them from john earles , he sounds like he knows his stuff and I got good ones as well, cost 120 for the set, mahle clevite made in the usa

just been on the mahle website and these bearings are for a 3.5 and mine is a 3.9 efi

Ive just found out that 3.5 and 3.9 main bearings are the same , in the center or no 3bearing holder sometimes only has the upper has a thrust bearing and the bottom one only accepts a plain bearing ...
Rover Main Bearings 3.5,3.9,4.2 ( Quality Federal Mogul Brand) - V8 Tuner

***Note***
Most 3.9 & 4.2 and some replacement 3.5 Litre Land Rover, Morgan & TVR Engines, have a thrust centre bearing in the upper half of the block only.

The centre main CAP will not accept the thrust type bearing and therefore an extra plain bearing shell will be required.

£120look at rtc1718g or later stc4299g,nearer £30

Ive just looked and they are the ones because it only comes with one upper . But they ate britparts and Im not a fan of their stuff . Bad experience restoring a series 3. So opted for genuine buick parts .

britpart is the largest of the 3 main landy parts wholesalers g means genuine not cheap pattern ,most genuine stuff is supplied through them ,the fact a lot only by the cheap pattern and not genuine or branded that they sell isnt their fault

google rtc1718 and see pattern £13

Oh ok . So basically I got ripped of when I could have bought them at 1/3 of the price I paid .

fedral mogal are good though...dont worry about price..whats done is done..

may i recomend AUTOPOST..in croydon...ask for Paolo..(might av spelt that wrong, pronounced pall-low)...he is good...knows his stuff, parts are cheap..ask for genuine or OE..they have (he does asnyway) no quibble warrenty, always excellent service..

do not speak with older lady or gent..only paolo!!!(cos older gent is rude, and older lady knows feck all)

ignore their website ..it is crap..just ring them..NO PAOLO =NO ORDER..


i have rebuilt my 4.6 using thier parts.(and turners).perfect fit..20psi oil on cranking (starter only) using their OE tappets,rockers (steel ones) and shafts..these he uses himself..

otherwise..turners..real steel......not rimmers..not paddocks...people on phone are sales only..no knowledge..(though parts are ok..)

Thanks zen ill keep them in mind for future parts.
Ive just spoke to john eales and he said just file the lug hole out a bit to accept the lower thrust bearing so that it then matches the upper thrust bearing . See photos on page 5 . Once all them are done I can torque up and make a start on the conrods .

ive just filed the lower holder no 3 down and now the lower thrust bearing fits perfectly , so the no 3 both have upper and lower thrust bearings in , im a little concerned about the gap or lack of gap between the cap and bearing and the crank see photo ,ill wait to see what people think before I torque them up

Well no one came back to me so its now all back together . Fingers crossed it works ok

lightning series3 said:

Well no one came back to me so its now all back together . Fingers crossed it works ok

Click to expand...

it should be a good fit but with a few thou clearance

Im just filling with oil and gona try and fire up .