EK / HR front end crush tubes.

[oz_ek]

Gents,
The crush tubes / spacer tubes that the front end to sub frame bolts go through, are the EK and HR tubes the same length ?

[ardiesse]

No, they're not. I measured examples of each in response to the same question on another thread, but do you think I can recall which one?

Yes. "Project 2".

"HR front crossmember bolt: 1/2" UNF x 5-1/4" (shaft length 5", with 1-1/4" of thread)
HR front crossmember spacer tube: 1/2" ID, 0.630" OD (close enough to 5/8"), 2-5/8" long
HR front crossmember bolt upper washer: 17/32" (0.530") ID, 1.712" OD, 1/8" thick."

Didn't measure the EK spacer tubes. But Rare Spares has an HR-front-crossmember-into-FE-EK rubber kit. Don't know about spacer tubes though.

Rob

[oz_ek]

No, they're not. I measured examples of each in response to the same question on another thread, but do you think I can recall which one?

Yes. "Project 2".

"HR front crossmember bolt: 1/2" UNF x 5-1/4" (shaft length 5", with 1-1/4" of thread)
HR front crossmember spacer tube: 1/2" ID, 0.630" OD (close enough to 5/8"), 2-5/8" long
HR front crossmember bolt upper washer: 17/32" (0.530") ID, 1.712" OD, 1/8" thick."

Didn't measure the EK spacer tubes. But Rare Spares has an HR-front-crossmember-into-FE-EK rubber kit. Don't know about spacer tubes though.

Rob

Thanks for the reply Rob......So the HR tubes are around 66mm in length and it would appear the EK is around 94mm?

[Mick]

i believe the tubes come in different lengths also which are identified by a colour paint dobs something to do with alignment though i've mixed matched from different cars the same car never putting back where they originally came from with no ill effects

[oz_ek]

i believe the tubes come in different lengths also which are identified by a colour paint dobs something to do with alignment though i've mixed matched from different cars the same car never putting back where they originally came from with no ill effects

Colour coded?....The plot thickens!

[Errol62]

Base caster setting adjustment. Longer ones at the back gives more caster.


FB ute fixer upper, EK van on rotisserie

[oz_ek]

Base caster setting adjustment. Longer ones at the back gives more caster.


FB ute fixer upper, EK van on rotisserie

So these tubes act as shims?

[Errol62]

My understanding is that they contact the cup washer above and flat rectangular washer at the bottom, thereby limiting compression of the rubber component to varying degrees. The front outrigger appears to have some range in vertical location which would enable tilting of the crossmember. Rob Shaw will have more to contribute no doubt.


FB ute fixer upper, EK van on rotisserie

[oz_ek]

I should have taken more notice when I pulled it apart!......26 years ago!

P1070877.JPG (143.26 KiB) Viewed 1054 times

[oz_ek]

HR front end....

HR front end.jpg (101.34 KiB) Viewed 1051 times

[Errol62]

Pretty much I've just taken out the short shim tube, along with the bottom rubbers, when fitting the HR crossmember. The long bolts get very close to the end of their threads. I recall maybe cutting them another few turns or you can get shorter bolts or add spacer washers of course.

Sent from my SM-G781B using Tapatalk

[oz_ek]

Pretty much I've just taken out the short shim tube, along with the bottom rubbers, when fitting the HR crossmember. The long bolts get very close to the end of their threads. I recall maybe cutting them another few turns or you can get shorter bolts or add spacer washers of course.

Sent from my SM-G781B using Tapatalk

Thanks for the input Clay, any idea if the HR bolts are shorter?

[Errol62]

I can only speculate that they are Phil.


FB ute fixer upper, EK van on rotisserie

[ardiesse]

The HR crossmember bolts are shorter than the EK ones. Can measure, if needed.

The long spacer for EKs comes in two lengths, with the longer one installed at the rear. Can measure, if needed.

When I did a front disc conversion on my EK, I used HR bolts, spacers, washers and rubbers. It might be possible to substitute the EK top rubber and top mounting retainer for the HR top rubber and washer, but you'd still need to use HR bolts, spacers and lower rubbers. (And, of course, you still need the EK outrigger rubber.)

Rob

[Blacky]

Rares sell a kit to put a HR front end into an FB/EK with the correct mix of rubbers required.