YODAONE

The plastic fuse box lid contains a sealing gasket.

This sealing material shrinks, hardens, cracks and falls out in chunks when accessing the fuse box.

The seal.is not a separate service item, requiring purchase of an entire fuse box cover

Replacing the cover is an issue because the inner fuse box diagram labels are no longer available.

However, the seal can be replaced

Anyone already tackle this?

Gasket is nestled into recess. Appears to be friction fit.

Close up image depicting fractured gasket. This is typical of every LS400 cover I have surveyed.

razvy

That's a good point , try to use a hair drier and heat that sticker nice whit patience it looks like it's not very firmly glued .

RA40

iTrader: (6)

If one didn't mind the expense they could take a pic measure overall length-width to have one of the decal shops print a bunch.

On another forum I've been considering having a part reverse engineered and CNC'd because the manufacturer has long gone out of business. That one part is a critical component to keeping the assembly working. Sadly, the attrition rate because parts are not available makes my undertaking that project less motivating. There aren't many left and I don't want the expense of parts I won't be able to recoup the expense from either. Mine is about a $3K project initially. The assembly itself in working condition is maybe $300 tops, disposable at this point.

JonnyO78

What's the gasket made of? How about making a mold and creating one out of FIPG? Or put it in the gasket track and wait for it to dry?

YODAONE

There are standard circular, rectangular or notched rectangular profiles in rubber or EPDM sold in rolls.

It is simply a matter or scraping the old material from the groove and pressing in new material.

I inquired if anyone had already re-gasketed theirs..

Almost every LS400 has this issue.

YODAONE

Rummaged through McMaster-Carr catalog and located "X-Profile Oil-Resistant Buna N O-Ring Cord Stock" in 3 foot lengths.

Purchased 5mm wide, P.N. # 1207N19 in 3 foot length.

Am also.purchasing the 4.5 mm diameter material, to.see if less force to latch the cover closed, P.N. 1207N18

The fit is snug so no adhesive required, and the X profile replicates the set of the old gasket material...not sure what OEM material used, but it disintegrates when barely touched.

Several images of the material used and install...


X profile has a channel to better mate with lip of fuse box base.

Used this hooked pick to remove hardened gasket material. Now using same tool. to press x gasket into fuse box cover channel.

Old material.


New gasket before trimming. 3 foot section enough to complete the job

Finished product

Craftsman pick set. Also useful.for replacing connector shells among other things

razvy

YODAONE .
Nice job , congratulation for the ideea and execution .
You give me a place to check and if I don't like it i'll use your approach .

YODAONE

McMaster-Carr catalog page.

RA40

iTrader: (6)

Great stuff! This wIll be on my list of to do's.

YODAONE

Received P.N. 1207N18 , 4.5 mm X profile from McMaster-Carr.
4.5 mm holds snugly in channel and is a better fit overall than the 5 mm X profile.

The lid latches require a lot less force as well.

LexusNAZ

I would get some black silicone for automotive use and put a few dabs around where the old seal is still hanging in to keep it in the box. Then use the silicone to fill in the gaps that have chunks missing. Best of luck!

YODAONE

It is less expensive to replace the entire seal with 4.5mm X profile material at .46/ft than purchase a tube of black silicone....