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Has anyone changed out their 1600 cc VW engine to the larger 1835, especially with dual carbs?
I had a 1641. And have a 1776 long block ready to be completed and installed…when I get my car back that is!
There are a ton of guys on the speedster forum with 1835 and larger.
Is there something speciic you are looking for?
Paul Mossberg
Former Owner of a 1981 Classic Roadsters Ltd. Duchess (VW)
2005 Intermeccanica RoadsterIf you own a TDr and are not in the Registry, please go to https://tdreplica.com/forums/topic/mg-td-replica-registry/ and register (you need to copy and paste the link)
I’ve got a 1776 in Winston but running a single carb. Can’t get dual carbs under the deck lid.
Been watching this thread. Noticed that a lot of folks talk about fitting issues with dual carbs. Is this a model specific (as in Duchess, Lafer, etc.) problem or is it an issue with all TDs? I have a 1641 in the Ghia with dual carbs and oil bath air filter on each (from 36 hp engines) and am looking at putting the 1641 in the TD and building a 1776 for the heavier Ghia.
Allen Caron
VW based 53MGTD - "MoneyPenny"
"If one thing matters, everything matters" - from the book The ShackLooks to me like there are some very substantial differences in engine room among the various kits. Bridget–a British Coach Works Model 52–is extremely tight under the rear deck, without room for even a low profile bug air filter atop its single Solex carb.
Small dual carbs might fit on her but because of the narrow opening into the engine bay, I doubt they could be adjusted or balanced with the engine in the car.
I personally like the look of the BCW’s “gas tank” area better than the other kits I’ve seen, as the smaller bulge and better detailing (tubular spare tire mount with integral license plate holder and an actual flip-top gas cap) make it more credible as a TD. BUT:
You guys with big, boxy lift up engine covers would seem to have a much more sensible place in which to work on your motors, and a lot more options for putting fun and interesting power plants behind your seats.
Space is my problem with the Allison. The bump out for the spare tire is so small that even a small aftermarket air cleaner hits on one side. In looking at the area under the deck lid I really don’t have room for dual carbs unless they were on very short manifolds. Even then they might not fit. So I’ll stick with a single stock carb. I’m still looking for a small diameter short air cleaner that will clear the deck lid
Tom I went with the smallest most pratical air cleaner I could find,Its a 6″round x2″ tall And I still had to notch out the rear cover for it to clear.I think it cost around $14 with the shipping from mofoco on ebay.others have them for around $10 but want more for shipping.
Space for dual carbs definitely varies by manufacturers.
Classic Roadsters Ltd. Duchess has room.
Paul Mossberg
Former Owner of a 1981 Classic Roadsters Ltd. Duchess (VW)
2005 Intermeccanica RoadsterIf you own a TDr and are not in the Registry, please go to https://tdreplica.com/forums/topic/mg-td-replica-registry/ and register (you need to copy and paste the link)
Rich Wobby has an Allison and I think he picked up a dual carb setup. Don’t know if he’s tried to fit it yet.
I bought a funnel-type air cleaner and ducted it to the top of the carb. The air cleaner is hanging down the right side of the fan shroud. I had it zip-tied but that failed, so looking for better solutions.
It works though.
This is the Ghia engine I built with two 34mm Dellorto carbs. I hope it’ll fit in the TD. My kit is a CMC/fiberfab.
newkitman40807.7764351852
Allen Caron
VW based 53MGTD - "MoneyPenny"
"If one thing matters, everything matters" - from the book The ShackTwo minutes with a tape measure will answer that Allen!
And that IS a nice looking engine. Simple. Clean. I like it!
Paul Mossberg
Former Owner of a 1981 Classic Roadsters Ltd. Duchess (VW)
2005 Intermeccanica RoadsterIf you own a TDr and are not in the Registry, please go to https://tdreplica.com/forums/topic/mg-td-replica-registry/ and register (you need to copy and paste the link)
I’ll have to measure the side-to-side clearance from the inside of the engine lid. That should tell me what I need to know.
Thanks for the compliments on the engine. Was a pain to start initially but once I got it running, tuning her was easy and she runs nice and smooth.
Allen Caron
VW based 53MGTD - "MoneyPenny"
"If one thing matters, everything matters" - from the book The ShackAllen, Remember that the engine cover is slightly wider than the actual opening that it covers. If it was not wider , the opening would not be completely covered.On cars with the dual carb set up , the carbs are located very near the area where the engine cover meets the body,so you need space there too.
Check out Currenttoy’s photo gallery . His Duchess has the two carbs ,notice their location in referrence to the body panels and also the slender air cleaners.
Your CMC may vary slightly from the Duchess,but you will get an idea of what you may be facing.
Be wary of Craig’slist. Two days ago, I bought what was advertised as a well running 1835 engine only to find out after bringing it home and opening it up, that there was a broken valve spring, pitted pistons, and it was not any bigger than my 1600. Got my money back though, so we’re just going to build out my existing engine.
I wouldn’t buy a “built” VW engine from an unknown source even if I could hear it run. Close tolerances and lots of potential mistakes amateur builders make that could kill an engine inside of 5000 miles. Just a very different sort of animal than, say, a small block Chevy.
I would consider a $50 or $100 running 1600 DP though, just to have a core and/or something to make my own stupid mistakes on.
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