Oil pickup pipe press fit

PostPost by: 2cams70 » Mon Jul 04, 2016 3:14 pm

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
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PostPost by: Galwaylotus » Mon Jul 04, 2016 7:12 pm

Consider getting it swaged to a tighter-fitting diameter.
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PostPost by: Hawksfield » Mon Jul 04, 2016 7:16 pm

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.
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PostPost by: mrdoow » Mon Jul 04, 2016 7:20 pm

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PostPost by: elj221c » Tue Jul 05, 2016 9:01 am

Hawksfield wrote: Also mine is a straight tube.


Indeed so is mine. I thought they all were?
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PostPost by: rgh0 » Tue Jul 05, 2016 9:47 am

The bent tube is for a rear bowl sump engine such as used on Escorts

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PostPost by: billwill » Tue Jul 05, 2016 1:34 pm

rgh0 wrote:The bent tube is for a rear bowl sump engine such as used on Escorts

cheers
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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.
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PostPost by: h20hamelan » Mon Feb 03, 2020 4:01 am

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 2124 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...
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PostPost by: rgh0 » Mon Feb 03, 2020 4:26 am

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

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