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Oil pickup pipe press fit

PostPosted: Mon Jul 04, 2016 3:14 pm
by 2cams70
Hi Guys,

I'm wondering whether anyone has had issues with the press fit used on later pickup pipes becoming loose. In my younger days scouring wreckers yards when English Fords were everywhere I well remember taking the sump off a newly reconditioned crossflow engine I was going to purchase only to find the crankshaft and it's bearings totally destroyed. On closer examination I found the oil pickup pipe to be loose at the press fit interface between the pipe and the block. It was obvious that the oil pump had been sucking in air at this point rather than oil from the sump!

I don't want the same thing to happen to my Lotus engine and as it is currently the press fit seems to be a bit loose. Do you guys have any recommendations regarding how to restore/improve the press fit or a suitable sealant to use at this joint? The pickup is the big wing type so unfortunately I cannot easily find a replacement because the Elan/Cortina type is different.

Photos of the pickup and of the press fit section are attached for reference.

Regards

Re: Oil pickup pipe press fit

PostPosted: Mon Jul 04, 2016 7:12 pm
by Galwaylotus
Consider getting it swaged to a tighter-fitting diameter.

Re: Oil pickup pipe press fit

PostPosted: Mon Jul 04, 2016 7:16 pm
by Hawksfield
Hi

I always use Loctite bearing fit, never had a problem but also its not loose in the block.
Also mine is a straight tube.

Re: Oil pickup pipe press fit

PostPosted: Mon Jul 04, 2016 7:20 pm
by mrdoow
20140415_101704.jpg and
die and practice result
Can you resize the end with a die made from a hard bolt (see photos)?

Re: Oil pickup pipe press fit

PostPosted: Tue Jul 05, 2016 9:01 am
by elj221c
Hawksfield wrote: Also mine is a straight tube.


Indeed so is mine. I thought they all were?

Re: Oil pickup pipe press fit

PostPosted: Tue Jul 05, 2016 9:47 am
by rgh0
The bent tube is for a rear bowl sump engine such as used on Escorts

cheers
Rohan

Re: Oil pickup pipe press fit

PostPosted: Tue Jul 05, 2016 1:34 pm
by billwill
rgh0 wrote:The bent tube is for a rear bowl sump engine such as used on Escorts

cheers
Rohan



I'm puzzled because such an engine will presumably not fit in a Lotus, yet the original Poster said his problem is for a Lotus engine.

Re: Oil pickup pipe press fit

PostPosted: Mon Feb 03, 2020 4:01 am
by h20hamelan
2cams70 wrote:Hi Guys,

I'm wondering whether anyone has had issues with the press fit used on later pickup pipes becoming loose. In my younger days scouring wreckers yards when English Fords were everywhere I well remember taking the sump off a newly reconditioned crossflow engine I was going to purchase only to find the crankshaft and it's bearings totally destroyed. On closer examination I found the oil pickup pipe to be loose at the press fit interface between the pipe and the block. It was obvious that the oil pump had been sucking in air at this point rather than oil from the sump!

I don't want the same thing to happen to my Lotus engine and as it is currently the press fit seems to be a bit loose. Do you guys have any recommendations regarding how to restore/improve the press fit or a suitable sealant to use at this joint? The pickup is the big wing type so unfortunately I cannot easily find a replacement because the Elan/Cortina type is different.

Photos of the pickup and of the press fit section are attached for reference.

Regards


And the few I have noticed are straight

RDENT

C4F39CE6-2F0B-4226-94FB-59BDC5F18B38.jpeg
C4F39CE6-2F0B-4226-94FB-59BDC5F18B38.jpeg (33.17 KiB) Viewed 1150 times



The swinging one was bent. From a recent post. Maybe that one has to be.

I suppose on long sweeping corners the baffles do their thing (CeeJay design). And the largest accusump does not have enough in reserve. I suppose its all a moot point as things have been this way for 50 years. So outside of a dry sump...

Maybe I am missing something. I am hoping to be ready to make baffles and secure a “swagged” oil pick up tube with 641 “loctite bearing” i think it was.

Sort of surprised there is no stainless safety wire or the like...

Re: Oil pickup pipe press fit

PostPosted: Mon Feb 03, 2020 4:26 am
by rgh0
The original post from some time ago was by 2cams70 and he has a couple of twincam escorts with the rear bowl sump and hence the bent pick up compared to the straight press in one in the Elan. If you modify the sump for the swinging baffle design up then you need to modify the pickup tube to add a bend to bring it to the centre of the sump if using the press in style block

cheers
Rohan