1
Darrin Forum / Re: Darrin
« on: August 15, 2017, 01:28:58 PM »
Are the parts physically interchangeable.....yes. Does not mean that they are the correct part(s) for the carb...... NO. For example I believe that there are no fewer than 4 different accelerator pumps for the YF carb that vary in shaft height and where that groove is on the shaft for spring keeper. There are also several different needle and seat combinations. The standard rebuild kit that most people sell for the Darrin contains a needle that is too tall. You can you make it work by bending the tab on the float to get the correct height, but run the risk of having the needle get ******eyed in the housing it travels in and when the float is all the way down it can jam, therefore not seating properly and causing the engine to flood. There are also several different jet and metering rod combinations. Bottom line is that when multiple different carburetors have been used to create one, you have to be very careful to make sure that it will work properly. I have been there and done that!
The bases can be changed out (I did not say they couldn't), but the one you show is for a 4-cylinder engine. There is a reason that Carter made bases with different throat diameter. The 630 base you show on your carb will fit and work, but not correctly. It has a smaller throat and therefore will restrict the amount of air that can flow through it.
The top of the carb is another thing. If is not made to mate with the bottom part (i.e. the air/fuel passageways) then it will not work. Also have been there and done that.
Bottom line line is that for you to say that it will work on a Darrin is crap unless you have done so, or verified that all the parts used to create it are correct! I did not see either statement in your ad and for an asking price of $325 I would expect that.
The bases can be changed out (I did not say they couldn't), but the one you show is for a 4-cylinder engine. There is a reason that Carter made bases with different throat diameter. The 630 base you show on your carb will fit and work, but not correctly. It has a smaller throat and therefore will restrict the amount of air that can flow through it.
The top of the carb is another thing. If is not made to mate with the bottom part (i.e. the air/fuel passageways) then it will not work. Also have been there and done that.
Bottom line line is that for you to say that it will work on a Darrin is crap unless you have done so, or verified that all the parts used to create it are correct! I did not see either statement in your ad and for an asking price of $325 I would expect that.