TR Fuse Panel Fixed!!

Very clean repair...just wondering what the cost was?

 

Do you have his contact information who did your repair? I would like to have a board checked out.

 

Go here.
http://www.****************.com/
I am interested as well.

 

Can you advise on cost.

R

 

sorry, but I could never put that in a car.

 

So what would you do then?

And please don't tell me that you'd "just by a new one" at $4,000+, presuming that you could find one.

 

What you are looking at IS the original OEM unit that has been modified to do the job without melting and catching fire.

The brand NEW original OEM unit is worse than alternative.. What would you suggest?

 

I would buy an original or sell the car, what else can I say. Thats how I would approach the issue.

 

Except when there are NO new ones to buy, so I guess it's sell the car rather than give it a new life. Too bad.

 

there available but you have to pay for one. Its like living in a mansion you can't afford, it's only a matter of time before your on the street.

 

Are you saying that windows will go faster if I replace the relays ???????????

Ski

 

The other issue is that brand new fusebox that you pay huge amount of money for still has the inherent connector problems that will only lead to the exact same faults that this repaired fusebox had. The repaired fusebox is redesigned to correct these problems so that they do not occur again. It is a much better fix that will not have the same problems in the future.

 

Gotcha...thnx

Ski

 

it's not the fuse box its the
fuel pumps
a/c fans
rad fans
etc etc
that need replacing
the fuse box is the last line of defense
fix the problem before the box melts

 

You have it backwards,

There is nothing wrong with the A/C, 2 Fuel Pump circuits , 2 cooling fan circuits and oil cooler fan circuits on most TR's, especially my TR. They run perfectly.. They are high amperage circuits by nature of the operation. Fans and pumps use a lot of amperage.

The white connectors along the bottom of the fuse panel are under-engineered for the high amperage nature of the circuits involved.
This is an engineering deficiency in the fuse panel, NOT the high amperage circuits that use it.

The white connectors overheat, melt, and transfer the heat into the printed circuit board inside, damaging the printed circuits in there as well. THEN your board is JUNK.

Do the pre-emptive modification that Dave Helms suggests and none of this will happen.

Re-read the posts above.

OUR, you can continue to ignore the 50 or so threads in Fchat on this subject and spend 4,000 on a NEW board that is no longer obtainable.

 

Yeah...I got a new box couple years ago...somehow I only paid $1600 for it. It was a brand new model (forgot where I got it from) but I did put relays for my radiator fans cause one of them seized and melted the board to that fan. So far they are working good. So what you're saying fuel pumps draw tons of amps too huh? Dang, I guess relays need to be placed there too

Ski

 

2 fuel pump circuits
2 cooling fan circuits (Water)
1 oil cooler fan circuit
1 A/C cooling fan circuit
All have the highest rated fuses on the board because they draw the most current.

The little white connectors are TOO SMALL to handle the load and transfer heat into the printed circuit board, trashing it.

It's not IF, it's WHEN.
Dave Helms and Rifledriver wouldn't be doing these fixes because they are bored and have nothing better to do. It is the only way to keep these cars on the road.

OR, you can keep spending thousands on boards with crappy connectors and keep having them burn up.

 

Precisely!

Conceptually correct. When the cars were brand spanking new, the current draw through the white pin connectors was near the engineering limit. As any vehicle ages, we must take into consideration the effects of corrosion and component ageing effects. Both of these components will cause an increase in current draw. Ohm's Law in place here...

Again a spot on description on the consequences of Ohm's Law in play. See the above paragraph for further expalnation, Mr. Rock.

Yep...You just can't fight Physics!

Pretty common components on virtually all FI cars. Current draw may increase over time, as decribed above. If the OE fusebox/connectors were designed to handle xx amps, and over time, the current draw increase to xx+10% amps, the current "under-engineering" design will melt....

As scary as this sounds, we saw fuse box issues with these cars back in the late 80's.

 

Its against the rules for me to jump in here and discuss this but what the heck....

The connectors are just one of the problems, there are a host of other fundamental issues that need to be resolved that I did with my kit. These issues, if left un addressed will lead to the failure of a new box (and much worse if ignored) in short order....been there a GREAT many times in the past. It was a good friends Mondial Cab.'s second fuse box failure in between major services that led to my decision to make this available

Component draw is always something to be concerned about but if it isn't blowing a correct amperage fuse...its within its design parameters and is looking for another weak link that is easily found with the OEM package. One only hopes these issues are addressed while the failure points are still limited to the connectors and the box itself...after that things get REAL expensive to deal with....and no, there are no new factory parts available to deal with those issues either. If a component draws 5 amps when new and things start melting when the draw gets to 7 amps when aged....you have a serious design issue, not a component issue.

A week ago I had to buy one of the replacement fuseboxes for a Mondial that was too far gone to salvage due to water damage. I was very pleased to see the quality of this replacement and it proved a perfect base for me to build a kit from. Nice workmanship, properly built from what little I could see. Its a product that was needed in this market and was done to a nice standard....its not all thats needed in this case. Shall we mothball all of the TR's, F40's, 328's and Mondials? Prototypes in testing for the 355's now.... there is no rebuilding of those boxes when they go Chernobyl.

Rock, Is that your work with the replacement boxes?

Dave

 

I never hear these TR design problems of the fusebox in the 512TR.

Inspected all connectors in my 512TR and see no signs of overheating.

Did anyone have the possibility to compare the two ? It may help thinking....

 

Keep watching.... it will be along in a while. The box and the connectors were changed but the fundamentals were not. Better than the original design but still short of whats needed for the long haul.