Inlet manifold hoses

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robpitt

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Hi all, this may sound like a basic question. But my inlet manifold has three smaller hoses which I can not for the life of understand we they have been connected the way they have. The hose on the very near the butterfly has a bolt in the end. The hose at the far end connected to the thin alloy section is connected to the rocker cover breather and the second hose near the butterfly underneath is connected to a hose which goes down toward the chassis... That I am yet to understand. Some has clearly messed about here but I have no idea in what way as I don't know the standard connections and cannot find them in a manual.

Can anyone help??? This does not seem right.

Thanks
RP
 
Sounds like you're talking about vacuum/breather hoses. The crank breather is connected. Does the pipe that "goes to the chassis" finish up at the vac advance on the distributor?

Pic?
 
I am indeed, struggling to work out which one goes where if you know what I mean? I can't be sure right now but I will have to check. Most annoying is the hose with a bolt stuck in the end!!
 
robpitt said:
Most annoying is the hose with a bolt stuck in the end!!
Click to expand...

That's in the hose from air filter to carb? If so, I wouldn't worry about that too much. In fact, I've done exactly the same on mine - that connection went to the EGR (exhaust gas recirculation) guff, which now resides in the bin.

An air leak there won't make much difference at all. An air leak in the pipes connected below the carb - the vacuum pipes - will.
 
OK, I've just had a look at the vac piping on mine. 1980 2.25 3brg, EGR has been removed, and points replaced with non-vac advance electronic ignition.

There is now just ONE small bore vac pipe on it - from the inlet manifold to the side of the carb, next to the anti-run-on solenoid, just above the idle mix screw. That was also connected, via a tee, to the vac advance on the distributor.

There's also a larger bore setup connecting the rocker cover (crank breather) to the inlet manifold (same boss as the small vac above) and the air filter-to-carb pipe.

With the EGR, I also had a little network of vac pipes, including one from the metal elbow just above the carb throat. That's now blocked off with an M5 bolt into a stub of rubber.
 
Well I'm a little embarrassed now as I forgot to mention this is regarding a diesel 2.25 so no carb. Apologies... But thanks for the input TooMany2cvs. I will put a pick up of the install as soon as I can.

On a separate note had a look at you thread today was very interesting will be watching it closely.

Thanks
Rp
 
Sounds like your engine was breathing heavy and has been vented to the chassis.
Does it have a different vacuum pump on it for servo brake or is it no servo.
 
So... The hose going down to the chassis it attached to a metal pipe that goes under the vehicle and is attached to the underside of the body. This is under the seat box. Unfortunately access is limited as the seats that are in my vehicle are a random set which are heavily bolted in. So next major job is to unbolt everything to see what this could possible be. It might have something to do with when it was a Royal Navy vehicle which had some sort of pump in it! Plot is thickening...
 
robpitt said:
So... The hose going down to the chassis it attached to a metal pipe that goes under the vehicle and is attached to the underside of the body.

It might have something to do with when it was a Royal Navy vehicle which had some sort of pump in it! Plot is thickening...
Click to expand...

It's for emptying sea water out of the bilges and stopping it sinking...?
 
Haha... Something like that... Think it might have been some sort or fire tender or something of the like, as it has two very large pipe fittings one on each side of the vehicle. Although one is marked with a plate saying cooling water???
 
robpitt said:
Haha... Something like that... Think it might have been some sort or fire tender or something of the like, as it has two very large pipe fittings one on each side of the vehicle. Although one is marked with a plate saying cooling water???
Click to expand...

That makes perfect sense. Most fires are quite hot, they're well known for it.
 
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