Help diagnosing

DeadFateLD

I recently paid alot of money to have my motor rebuilt in my 1991 b2200 we got the motor in and it has a very quick tapping sound. I was thinking adjusting the valves would fix it but my rockers are solid and I can't adjust them. My mechanic believes the valve spacers they put in at the rebuild shop were either the old valves or just wrong ones. Any help on maybe how to adjust them would be great because they don't have a visible way to adjust

MazdaMitch

The B2200 has hydraulic lifters, they are non adjustable.
They work by priming themselves up with oil.

Several things could be at play here.
What "could" have happened was the mechanics mixed up the valve train oil rails and its starving one side of oil and the lifters will not stay primed.
OR
They mechanics could have used the wrong head gasket and its starving the valve train of oil.
The correct head gasket to use depends on the engine block used.

One solution is to use a mechanical valve train that is adjustable. This would require you use the 2.0 valve train along with a 2.0 cam. You can not use a 2.2 cam with a mechanical valve train. You will never be able to adjust the tapping noise out and will possibly wipe out your 2.2 cam.

How To Swap the Valve Train from Hydraulic to Mechanical.
https://youtu.be/V8aA9HhsAHo?si=SV8MJ2ZdivZSpGF0

How to prime hydraulic lifters before installation.
https://youtu.be/oVlh0LuZnBE?si=P9Vb50u4ejcnU9w6

A not so great video about head gaskets and block differences.
https://youtu.be/Djl1SDZYsTs?si=CJ__x2pJ-wejDyxT

Johnnyrooster1

Hello b2200 brother and sisters, this is my first post on here. I posted on fb but it looks like we are transitioning to here. So I'll post on here as well.
I'm having an issue with my truck I can't figure out, I'm also not a mechanic. I also would like to fix the problem myself.
Truck starts up with no issues. When it gets warm and I turn it off, it will not start again. Until it cools off. When I try to start it, it is very labored. Like if it's fighting some sort of pressure build up. In the past it would happen every once in a while, then it started happening more frequent, and now it's every time. The truck has been sitting for about 6 months due to this issue. The last I drove it, it started to over heated and I pulled over and turned it off before it did any further damage. Yesterday, I charged the battery got it started and again starts right up with no issues and once it gets warm it doesn't want to restart.
It has a genuine weber 38(I did find a leak underneath the carb last night), and changed out the thermostat just in case that would help.
Any thoughts or suggestions?
Thank you in advanced

Cusser

"Yesterday, I charged the battery got it started and again starts right up with no issues and once it gets warm it doesn't want to restart. "

Fails to crank/spin the engine ?
Or cranks/spins the engine and just won't start?

Entirely different issues.

Maybe I can help with the issue "she won't turn over"

Johnnyrooster1

Cusser
It's sluggish to want to start. Only when it's warm. If I let the truck cool off. It starts right up. I only added that I charged the battery and started it again, to show, that even in sitting around for 6 months the truck starts up with no problem. Focus on the first part not that I just charged the battery. This issue I'm having is because it doesn't want to restart warm not that the battery wasn't charged.

MazdaMitch

Johnnyrooster1 stock carb or Weber or what?
It's got me thinking that it works fine when it's cold because it's choked and causing a rich condition and that's making it run well until it warms up and then the choke is not opening on up and it's too rich and making it run like crap once it's warm.

Cusser

Mitch has a good suggestion. (1) Make sure that the choke heater wire is plugged into the rear of the alternator (or there, or a "switched" 12 volt positive source if aftermarket carburetor. (2) Take off the air cleaner and investigate: the choke butterfly should move readily, and be essentially vertical once the engine is warmed up (and essentially horizontal when the engine is cold).