Recent content by Pete483

Alternatively, does anyone know how important this screw actually is? My carb was missing it before, it it didn't seem to have any negative effects.

Anyone know how long the vented screw that goes up from the thottle body to the carb is supposed to be? I'm rebuilding a non-USA 1977 carb (H3660 tag) and am missing the vented screw which I think is PN 21824-38010 Screw, Set, No.2(For Carburetor Body Set) and from what I can tell, is a...

All I know about the power valve is that it is turned "off" when the plunger in the top of the carb is pulled up by vacuum and "on" when the vacuum drops and the plunger falls, so it should be off at idle and on at higher power. I've seen from diagrams that its vacuum source is down in the...

I don't recall it looking too bad, but haven't had it apart in a while. The outside isn't paricularly rusty. Everything seems to repond as it should when I do the lean drop procedure. I'll try to the get the accelerator pump working and take it from there. I just pulled a plug and it's a...

I have no clue on the history of the carburetor, but this thing is a former Nicaraguan farm truck so it is safe to say whatever the worst thing that could have happened to it has probably happened. The bottom section is cast iron. No vacuum leaks and there are hardly any vacuum lines on this...

I don't know, it would seem like if your carb is running rich enough to start that easily in cold weather, its probably running way too rich in warm weather. Having poked around mud for a while, it seems like it is not at all uncommon to give a couple pumps before starting. I rebuilt the carb...

Thanks. I went ahead and just ordered the full Mike's kit. I had the same experience with the GP Sorensen pump, it was leather but just looked cheap.

Isn't a pump or two of the gas pedal a totally normal start up procedure? Are you saying I should be able to start the truck just fine in sub-freezing weather without an accelerator pump? I'm also not sure what you mean about opening the throttle when cranking on a hot start. Once its warmed...

The GP Sorensen kit came with a leather one, but it was a super cheap kit at the time, so I can't imagine it was the highest quality part. My diagnosis of the pump was that the truck starts fine as long as the temperature is above 50ish and that pumping the accelerator didn't have a noticeable...

I set about to diagnose my difficulty in cold starting my 1977 FJ45 and as I suspected, the accelerator pump is no good. I rebuilt the carb quite a while back with a cheap GP Sorensen parts kit and while everything else is fine, the accelerator pump seems like something where quality could vary...

Update just to close things out for posterity's sake. Inspection passed. Mostly they cared about lights working and the corrections to the carb stopped the smoke under load, so no problem on the visual smog check. I hooked the vacuum advance to the correct port, unhooked the throttle...

Long post, so here's my question: Does anyone know where to hookup the throttle positioner/choke breaker on a truck that doesn't have a VSV/EVAP system? I adjusted the timing and checked the vacuum advance -- it works. I hooked it up to the ported vacuum which makes sense. If it was on...

I haven't tested the advancer yet, but it's on the to do list once I buy some more vacuum hose. Like most issues on this truck, I'm sure the smoke is a combination of many small problems which is why I am trying to go through and fix the things that are clearly wrong. When I bought it it only...

None of what I am trying to add is US-specific emissions equipment, and I'm not worried about having to add US-spec emissions equipment to an imported truck. I'm 99.9% sure that the vacuum advance should be hooked to something, and I am 80% sure that the gas tank on anything from 1977 was...

I've got a 1977 Central American FJ45 that seems to be missing what little emissions equipment it should have. I'm looking for a source for a non-USA emissions manual or some guidance from someone with a fully put together non-US truck. Alternatively, is there an earlier year of US truck whose...