Fuel pump insulator block deflection

[Onceler]

Is this amount of deflection normal? It’s a new insulator block and fuel pump.

Link

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1972 Karmann Ghia

[SBD]

Does the bottom end of the insulator block fit semi-snugly in the case? The last one I installed I had to sand the OD of it a bit just to get it to fit all of the way down into the case. (But don't want it too tight. Reason I installed that last one was because the old one I had broke off in the case when I tried to remove it. It fit TOO tightly. ) I've never looked to see if the pump rod and insulator deflected though. Sure looks like a lot.
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"Just $99 down and $64 a month for 36 months buys you a brand new Volkswagen Beetle!"

[Onceler]

Visually it looks pretty loosy goosy

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1972 Karmann Ghia

[SBD]

I'm far from being an expert but it looks wrong to me. Makes me think it would at minimum cause the end of the isolator to break off in short order. Hopefully somebody else knows more and will say something? At the least I'd try another insulator block.
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"Just $99 down and $64 a month for 36 months buys you a brand new Volkswagen Beetle!"

[Onceler]

[Cusser]

[Carlsbadbug]

I would not use that one ! it will break and go through the timing gears , I have been rebuilding air cooled for 40 years , and was somewhat excited to find that they where making replacements for the old bakelite units , but after trying several , they all where way out of tolerance .. The shafts where loose , or the housing was loose in the case , find a good used one , after 50 years they are much better than that.. I have a box of good used ones , they are hard to get out , the only way I have found was to resist the urge to pry them and wait until the block is split , then soak with laquer thinner or carb cleaner , then use a piece of wood and gently push up from the bottom end strait on , if it doesn't come soak it some more ... Not all will come out without breaking

[modok]

I got a new one like that, it was loose int he hole. JUNK.

Thought about putting a sleeve on it to fix it, BUT.....guess what, the hole foir the plunger was too big also. So, thank god they made it uniformly junk, saved me the trouble.
Just use a good used one, if the it's too loose make a bigger pushrod.

[Onceler]

Good to know. I did see this one [url] https://www2.cip1.com/ProductDetails.asp?ProductCode=C24%2D113%2D127%2D303%2D. I’ll probably order it just for my own curiosity, but see if I can find an original in the classifieds too
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1972 Karmann Ghia

[SBD]

[mark tucker]

Ive had new ones that were too tight on the rod(probably china shit) and they all fit the cases somewhat loose. I dont mind that there is little side thrust the lobe is pushing the rod up&letting it down. yes it has some but I see no issue or vw would of changed it long ago. Imho a tight one would break because all the flex would be in 1 spot. I think cb has the good rods,I have some nos ones for my personal builds. I do however add about 3 small oiling holes to the plastic holder/guide up above the middle support at 3 different hights at a downword angle to funnell oil down and keep the rod well lubed. I have titanium tubing to make some light weight pushrods but havent done it yet, fuel pumps float just as valves do and can leen out the motor on a hard run.

[Onceler]

[Onceler]

[Onceler]

I received the one I linked to from Cip1. It’s the exact same as the first pos. The shaft measures 13.85mm, the oem one I just received measures 14.90mm
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1972 Karmann Ghia