Evidence Required -- Safety Issues.

[Guest ant.b]

Kit type: 2B Plus

Kit Purchase Date ,2004

SVA May, 2005

Total mileage 15,000

Type of prop failure , uj fail twice

Maintainance - Never greased it ! will do now

Engine cosworth

Diff standard 3.6

Gearbox t5

270 bhp @wheels

[Guest Dan_Beeston]

Kit type: 2B Plus

Kit Purchase Date ,2006

SVA May, 2007

Total mileage ~3,000

Type of prop failure , Spectacular fail at ~1000 miles. Prop twisted

Maintainance - Greased at least annually

Standard Pinto EFi

Matched diff & gearbox from same 50,000mile donor

115 bhp @ flywheel

[fry61]

600 members - nearly 300 views of this post - but it appears we only have a dozen cars between us; more input please,regards & good-night, Bob.

[Longboarder]

Post deleted.

 

Nigel

[Guest RichardO]

Kit type: S7 (Cortina based)

Date of Manufacture: Early 90's?

Purchase Date: Early 90's?

SVA Date: N/A

Total mileage: About 17,000

Type of prop failure: NOT FAILED

Maintainance: Nothing

Engine Size: 2000cc

Mods: Fast road cam, twin weber 40's

BHP: About 100

Diff ratio: Unknown.

Matched Engine & Diff: No. Diff possibly the original from donor, engine upgraded from original 1.6 to 2.0

 

Original prop replaced at about 15k miles after upgrading original 4 speed gearbox to type 9, new prop manufactured by "Propshaft Clinic" in Bradford.

[Grim]

Kit type: 2B Plus

Date of Manufacture: 2000

Purchase Date: may 2005

SVA Date: nov 2000

Total mileage: 37,000

Type of prop failure: NOT FAILED

Maintainance: UJs Greased sporadically

Engine Size: 2000cc

Mods: none

BHP: std 115ish

Diff ratio: 3.62

Matched Engine & Diff: no

[Guest Dan_Beeston]

I think in the grand scheme of things there have not been that many failures compared to the number of RH supplied props out there, I suspect the issue is more of variability in production. Some welded tube props may have stress raisers inside the tube making them marginal for the application, some may have a decent safety margin. (standard prop tube is very uniform allowing you to much more easily calculate the torque limit)

 

If a known RH prop was tested destructively I suspect you would just determine the torque lmiit for that prop, not RH props in general....

 

Just my 2p, sorry if this post gets in the way of what this thread is trying to achieve!

[fry61]

Long boarder, your knowledge is far greater than mine & your test results would be far better than my paper-work exercise,but how many people & props would be up for that. My call for information from good & bad was to hopefully show frequency & time scale of issues measured against "good 'uns"; thus giving a more balanced view than just asking for reports on problems. As we all know complaints get aired far more frequently & forcefully than praise. Hope to get more input so-as to see size of problem even if we are unable to fully trace same; only feed-back from members will determine whether this is a useful exercise or p---- in the wind, regards Bob.

[Jez Morton]

Kit type: 2B Plus

Date of Manufacture: 2004

Purchase Date: May 2004

SVA Date: Mar 2007

Total mileage: 2,500

Type of prop failure: NOT FAILED (but long grease nipples snapped and where replaced during build)

Maintainance: UJs Greased when built

Engine Size: 2.0 EFI

Mods: none

BHP: std 115ish

Diff ratio: 3.9

Matched Engine & Diff: Yes from doner 89K

[Peter Bell]

Wish I knew what Nigel had said!

Is it known how many had failed in this way? I suspect there was a poor batch made at one time, which is extremely unfortunate if you end up with one. But it is the origins of the failed ones you need to know about so people who bought kits at that time can keep a wary eye/ear on them, not the 2000 or however many there are that have not failed in this fashion.

There have been other failures in the past, rubber doughnuts, which have been well known to give up after a mere 25 years (mine included) but most of the others I have heard of were down to people forgetting to grease them.

[Longboarder]

Just waffle posted late at night. The following morning I thought it was irrelevant, impractical, leading off topic and could degrade the usefullness of the thread. In a dumb moment I deleted it rather than adding a post on the then end of the thread saying just ignore my jibbering.

 

Nigel

[NeilD]

Kit type: 2B

Date of Manufacture: 2001

Purchase Date: 2005

SVA Date: May 2006

Total mileage: 5,000

Type of prop failure: NOT FAILED

Maintainance: UJs Greased annually

Engine Size: 2.0 EFI

Mods: none

BHP: std 110ish

Diff ratio: 3.9

Matched Engine & Diff: Yes from doner

[Guest Tweedy]

Hi,details of my Hood:-

2B+ kit collected from RH October 2005

SVA February 2008

Donor parts were not from one car

Engine 2L DOHC,standard with Weber carb,rolling road 105bhp

MT75 gearbox

Differential 392 (Believe correct one is 362)

Only mod is cone filter for carb

No UJ greasing yet!

True mileage 2750

Prop shaft still OK

[BigLee]

Dont think mine is relevant. So not in "correct" format.. - Orig prop cut down XR4i prop with rubber doughnut - Didn't like that so replaced with prop from propshaft Clinic in Bradford. (Must remember to grease!!!)

[Longboarder]

Just scanning through my copy of PPC which dropped on the mat this morning. Dave Walker tells of a seven type car in which the prop turned itself into a three piece twirly whirly at 7000rpm/180bhp on his rollers. Ford RS2000 engine. Doesn't name the car but we would have heard if it was a Hood.

 

Nigel