Lotus Elan

Carburetors go on the car prior to the engine being reinstal

PostPost by: tdskip » Wed Jan 08, 2020 8:58 pm

Sorry my brain is fuzzy on this but I believe that I need to reinstall the Strombergs on my ?69 DHC prior to reinstalling the engine, correct?

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PostPost by: SENC » Thu Jan 09, 2020 1:22 am

I think many say not, but I found it easier to do so.
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PostPost by: tdskip » Thu Jan 09, 2020 2:31 am

Access once the engine is in looks to be pretty tight...hence the question.

Thanks for the reply.
Last edited by tdskip on Thu Jan 09, 2020 3:49 am, edited 1 time in total.
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PostPost by: SENC » Thu Jan 09, 2020 2:39 am

Getting the bottom nuts on and torqued correctly is a real challenge with the engine in - doable, but fiddly for sure. Much easier before the engine goes back in, though engine mount, distributor, and starter re-installs are much tougher with carbs in place. Basically pick your poison.
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PostPost by: tdskip » Thu Jan 09, 2020 3:48 am

Starter needs to be done after install I take it since engine goes in separate from the transmission?
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PostPost by: 69S4 » Thu Jan 09, 2020 8:56 am

I always leave the carbs off when reinstalling the engine. They always catch on something when your attention is elsewhere. Yes, one of the bottom nuts is a pain to put back on but without the carbs you have more space to get down around the engine mounts.
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PostPost by: oldelanman » Thu Jan 09, 2020 9:16 am

I would fit the heater valve ... the top of the footwell gets in the way once the engine is in the car. It can be done after but you will need to jack the engine up or take the valve apart to do so.
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PostPost by: Quart Meg Miles » Thu Jan 09, 2020 12:56 pm

Are the Strombergs really that difficult to install once the engine is in? It is the proximity of the Webers to the bulkhead which is their major problem.
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PostPost by: USA64 » Thu Jan 09, 2020 2:49 pm

I will certainly review my work. After new engine mounts and engine put in with transmission my heater valve went in just fine, no interference. I had been warned and forgotten so it was one of those moments.
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PostPost by: 69S4 » Thu Jan 09, 2020 5:03 pm

Quart Meg Miles wrote:Are the Strombergs really that difficult to install once the engine is in? It is the proximity of the Webers to the bulkhead which is their major problem.



No they're dead easy, O rings in place and just slot them onto the studs. Do up five of the six fixing nuts in seconds and then .... either get lucky and get the sixth (left hand carb, bottom nut) done up in a couple of minutes or spend the next couple of hours dislocating your finger joints and recovering the nut with a magnet. Or split the carbs and put them on one at a time.
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PostPost by: SENC » Thu Jan 09, 2020 6:43 pm

69S4 wrote:... or spend the next couple of hours dislocating your finger joints and recovering the nut with a magnet.


^this, 2 out of the 3 times I reinstalled carbs with engine in place, the other time I got lucky in the first 30 minutes. I also found it challenging to get the required spacing correct when installing with the engine in place.
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PostPost by: david.g.chapman » Thu Jan 09, 2020 6:47 pm

I cut down an open ended spanner to about 2 inches just for tightening those bottom nuts on Strombergs. Its still a bit fiddly but not too bad.

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PostPost by: steve lyle » Thu Jan 09, 2020 8:00 pm

david.g.chapman wrote:I cut down an open ended spanner to about 2 inches just for tightening those bottom nuts on Strombergs. Its still a bit fiddly but not too bad.

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Same here. Couldn't get the job done with my normal wrenches. Ground off some of the thickness of the business end of the wrench as well. Then polished the thing up. Made the job possible for me.
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PostPost by: webbslinger » Thu Jan 09, 2020 8:48 pm

I use a flexible (wire wound) 1/4" drive extension for the lower carb nuts, and a mirror to confirm the tightness. It's pretty simple with the extension and it works well for carb nuts because they aren't torqued down tight. I've never pulled or replaced the engine with the carbs on.
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PostPost by: el-saturn » Thu Jan 09, 2020 9:14 pm

.............this stuff makes some of us smile all over: thanks mates!!! i've been acquainted to my car since 1980 and other than the differential i've had every single part of the car in my hands ............. and restored them., when necessary. my engine (2 diff. heights and now at 701m) has been out at least 5 times and certain questions we read do really show the laymen amongst us. remember (us elderly folks) back then: you'd heat and modify spanners, make or weld new extensions, hit the lathe or the mill etc. etc.. i love all these different appoaches, don't you?? sandy
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