ahc front hose bolts?

[Chris T]

Hi all new member and new owner of a beautiful 2006 100 series.
So on the way back from a recent trip the front passenger side (UK car so left side) hose that connects the top of the shock to the accumulator burst where the hard-line connects to the soft. Front end dumped down to the bump stops. Luckily I was pretty much outside my house so not to much of a drama.

I've now got the replacement hose which foolishly I expected to come with the required hardware which it didn't.

I cannot for the life of me find either the official parts or the spec for the bolts and o ring / backup ring so I can buy replacements.

Any help would be much appreciated.

 

[FxFormat]

The new line should've come with the O ring in it, where did you buy it from. As for the bolts, are you referring to the two 12mm bolts holding the end of it to the strut mount? Take some pics so we can get on the same page to help. Also, good luck snaking that line in, it took me a lot of time and cursing to replace it, and i have a lift too.

 

[Chris T]

Bought it from Tuning Developments. Seems decent enough and it might have the o ring in it if it's pre pushed into the end of the hose, also it's packed with grease?


Yes the 2 12mm bolts are a rusty POS so would like to replace. Just don't know what thread/ pitch and length they are.

One thread I read said they're m8?

I know it's going to be a pitta but you gotta do what you gotta do right? I had it laying next to the old one in situ and it looked doable. Also read threads of people achieving it so I don't mind putting in the grind to get it figured out.

 

[FxFormat]

Those two bolts you can just take from anywhere on the body that uses a 12mm bolt for now, take one from the running board.

 

[Jay Tea]

Chuck your VIN into Amayama and have a look under 4805 Height control (auto-leveler) I'm sure there isn't any difference in bolt spec though so if that's the case, it's P/N 91651-60818.

Note, there are two different sets of P/N for the AHC shock o-rings/seals but I don't know how to distinguish between the two.

 

[uHu]

Havalook at this thread 04 LX470 Rear AHC Cushion, Bushing, and O-Ring Replacement - https://forum.ih8mud.com/threads/04-lx470-rear-ahc-cushion-bushing-and-o-ring-replacement.1303364/post-15202890 with some more info on the o-ring and backup ring (which actually works as a kind of spacer/support for the o-ring). There are some good pics of the o-ring from user Bull Moose in there.
That thread is mainly about rear shocks, but the fronts are the same, just easier to get to.

The front shocks had a thinner top on the early years, so if you are ordering, get the ones for the later years.

There shouldn't be any grease inside the bracket/pipe/hose. Wash and blow out. That grease could impede the functioning of the actuator.

 

[Jay Tea]

Havalook at this thread 04 LX470 Rear AHC Cushion, Bushing, and O-Ring Replacement - https://forum.ih8mud.com/threads/04-lx470-rear-ahc-cushion-bushing-and-o-ring-replacement.1303364/post-15202890 with some more info on the o-ring and backup ring (which actually works as a kind of spacer/support for the o-ring). There are some good pics of the o-ring from user Bull Moose in there.
That thread is mainly about rear shocks, but the fronts are the same, just easier to get to.

The front shocks had a thinner top on the early years, so if you are ordering, get the ones for the later years.

There shouldn't be any grease inside the bracket/pipe/hose. Wash and blow out. That grease could impede the functioning of the actuator.

Thanks for posting your link, after reading through and on a bit I now know how to interpret the little stars in the parts diagrams! 9903 = year 99 and 03 = month!!!

 

[Chris T]

Thanks for the help chaps, had a chance to look at it today.
Got the old hose of after fighting rusted bolts.
The o ring and backup ring are pre installed as previously said, that's a little win.
I'll pinch a bolt from else where for the mean time while I get some on order.

Any tips on snaking the hose over the frame rail? Had a little play and I can get it maybe half over, will have a proper go Friday when I get some time, any help much appreciated.

 

[uHu]

... Any tips on snaking the hose over the frame rail? Had a little play and I can get it maybe half over, ...

If the body mounts are not too much rusted, you can undo a few of them and lift the body half an inch.

 

[Chris T]

If the body mounts are not too much rusted, you can undo a few of them and lift the body half an inch.

Are there any hoses or cables that need disconnecting to lift the body that half inch?

A little extra space would definitely be appreciated.

 

[uHu]

Are there any hoses or cables that need disconnecting to lift the body that half inch?

A little extra space would definitely be appreciated.

I don't think so. That's about how much the rubber mounts can move anyhow, theoretically.

 

[Chris T]

So had a couple hours to fiddle, got the hose snaked over the frame everyone was right absolute ball ache but it's done.

In the extraction phase of the old hose I snapped of one of the bolts holding down the end of the hose on to the shock. my thought was undo the 22mm nut holding the cushion down and then I can try to extract what's left.
In the car would be a nightmare as there's just no room.
Problem is the nut that hold the cushion on is rusted as anything and I can't seemingly get a spanner on it. Any alternatives or trick to get this sorted?

 

[Malleus]

nut splitter

...or a Dremel with a cutoff wheel on it

 

[Chris T]

While I think of it anyone got a part number for the cushion that has the nuts attached for the hose?
Just in case I end up maiming it getting it off.
I've trawled amayama and can't identify it, found the other rubber cushions but can't find the metal bracket that hold the hose on.

 

[uHu]

While I think of it anyone got a part number for the cushion that has the nuts attached for the hose?

That would be 48519-60031 (L) and 48519-60021 (R), I think.
It's called "BRACKET, ACTUATOR SUPPORT, FRONT LH", although "bracket, actuator hose connector" could have been more descriptive.

 

[Chris T]

Thanks for all the help chaps, got the hose all installed.
Colour me an idiot what's this active test that everyone talks about, it's mentioned in the technical document as a way to deal with air in an empty system but doesn't tell you how to run it.
How do I get the front end to re pressurise itself? I've tried switching the engine on and letting it run for a couple minutes. Tech stream states no pressure at the front rear or accumulator.
I should also add, tech stream shows one error. A bad rear ride height sensor, could this be messing the whole thing up?