[Bumper bolt/stud mounting issue...]

On 6/10/2019 at 8:37 AM, jhm said:

What year and model?  Bumper mounting configurations varied quite a bit from year to year.  A picture of the specific area you're grappling with will help as well.

 

But the quick answer is yes, the bumpers often incorporated threaded studs as part of the mounting; and yes, those studs very often are rusted and/or broken.    

Geez. I'm scatterbrained this week...I couldn't even remember I asked about this already. 240z 1971 I believe 6/71 or 7/71. 

 

Looks like this is spot welded to inside of bumper and no access to bolt without removing...

 

 

[Front Bumper removal, spinning bolt...]

I had to grind off nut off stud bolt to get bumper off. It was spinning with socket (not me, previous owner). Suggestions for repair? 

[Bumper bolt/stud mounting issue...]

Many years ago when I first bought my Z, I never pulled the front bumper to do some things I wanted to. There was a reason for which I was reminded this week. One of the four studs was (already) loose and spinning when I tried to loosen the nut. So, this week, I had to take a Dremel cutting wheel and cut through the nut on both sides until it fell off, then removed the bumper. The other nuts were tough, but came off ok.

 

It looks like these where welded to the back of a bracket and then that bracket it welded inside the bumper. Is this correct? No way to access/replace bolt without having someone detach that bracket? 

 

In other news, while the bumper will never look new, I polished them up today. They had a lot of little pitted rust, but polish and 0000 steel wool really got them looking pretty good.

[240z Alternator Upgrade...]

Replaced pulley. AC Delco 12si.

Part: 2411001 10mm Belt x 67mm OD x 17mm Bore

Thanks.

[Super easy CS130 install]

I finished getting my CS130 alternator installed.
Alternator 3335-1222 CarID $75.39 (includes $7.95 shipping)
ACDelco® 335-1222 - Professional™ Alternator Dodge Monaco 1991, Professional™ Alternator (335-1222) by ACDelco®. Current: 96 Amp. With 6 Groove Serpentine Pulley. Pulley Size: 56mm. With External Fan. Plug Position: 3:00 O'Clock. )

I bought replacement pulley ($12.99): 10mm Belt x 67mm OD x 17mm Bore (part 2411001). Impact wrench took off alternator nut easily. Quick swap.
(Delco 10DN ER/EF; 10SI, 12SI, 15SI, 27SI/Type 100 Series IR/EF)
(the smaller [overdrive] unit appears to be 111 PowerMaster 2.35" OD).

DORMAN    85854    Voltage Regulator Connector    $ 5.24 (rockauto)

Got blade connectors on Dorman pigtail. Shrink wrap. Got turnbuckle at Lowes hardware. Picked up a couple thicker fender washers (had to drill them out just a bit for bolts to fit). Replaced rear mount alt bolt with one a bit longer (not enough threads on the one I had before that). Drilled a hole in a bolt and threaded (as described in other posts).

[Super easy CS130 install]

On 1/19/2016 at 11:45 AM, schicksal said:

mikeatrpi did you crimp the F and L wires together on your harness? I'm trying to do this swap and bought the same pigtail.

I know this is an old post, but I'm doing this now. I bought Dorman 85854. The black (F) wire I believe should be (and was) just bent over and left unconnected within the shrink wrap.

 

For others, the P designation on the harness/pigtail is empty.

 

SFLP

(S: red)(F: black)(L: brown)(P: empty)

[240z Alternator Upgrade...]

2 hours ago, ZHoob2004 said:

Size of the pulley depends on the speeds the alternator is rated for together with your expected rev range and the size of your crank pulley.

 

On a hunch I think you'll be close enough no matter what size you end up with, but you may want to double check or ask the shop.

My concern was just based on seeing what they said in that previous thread about being under-powered at idle, but I agree generally any pulley would probably be ok. I may just pick up a $10 pulley from eBAY and give it a shot -- it's not much work on these cars to swap that out if needed Thanks for your comment(s).

[240z Alternator Upgrade...]

6 minutes ago, ZHoob2004 said:

Have you gone to an alternator/starter specialist shop? They should be able to help you. Anyone that can rebuild an alternator in house. I see a place in West Jordan called "Generator Exchange" that you might want to call, didn't see anything closer on google maps but ymmv.

 

I was going to go to a place called Orem Auto Electric (I had been there in the past) but I guess they've been out of business for years.

I will call West Jordan exchange -- I guess if the GM pulley isn't going to be 'overdrive' (2 3/8) maybe I should just get the one online? Or could there be smaller ones at the electric shop, too?

[240z Alternator Upgrade...]

RE:

I have the 'Monaco' alternator (been sitting on it since last year) -- it has a serpentine pulley. I spent two hours this morning driving around to different shops, parts stores, and junk yards and NOBODY is willing to provide any help or direction in getting the right pulley. The previous thread mentioned above says "I went from a 2.75" to a 2.375", which resulted in charging voltage kicking in between 600 and 650 RPM, so no more dimming headlights while idling at a stop."  Searching online I have found what look like several viable options for larger diameter pulleys, but not the 2.375" size. Anyone know a part # I can reference to get that? Thanks for any help.

[EDIT] -- searching 2 3/8" I may have found some options -- PowerMaster 111 pulley? Does that look right? 17mm (.671"), right?

https://www.ebay.com/itm/380607392538

[5/8th bolt option for spindle pin replacement]

Hey all -- sorry to revive an old thread...

So, since Spindle Pins now seem to be about $40+ per pin -- the aftermarket option is  looking REALLY attractive. I had to get mine pressed out and they are ruined. Looking for replacements. Street car, but have barely driven it.
 

hwvigo, do you sell these with a slot mod?