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Alternator Advice Please

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Old Sep 9th, 2019, 21:08   #1
red122
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Default Alternator Advice Please

I have a new engine installed in my RHD amazon . It dosent have the two holes on the near side of the block to fit an alternator . i think it must have been a dynamo block at some point as its got the 3 mounting holes in the os for a dynamo bracket . Does anyone know if theres a bracket available that i can mount an alternator on please ?
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Old Sep 9th, 2019, 23:03   #2
Ron Kwas
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Red;

"new engine"?...B18 or B20?...it makes a diff!...late B18s and all B20s had a cast-in pivot for alt on manifold side (and I don't know about "two holes"and near side, because of that LHD/RHD thing...I like Manifold vs.Distrib side, so there's no doubt!)...mount options are best shown here (probably a pic of a B20):

For stateside conversions, I recommend the kit which I supply, which accommodates a Delco Alt, because of their ease/cost of procurement and service this side of the Atlantic, but for Europeans, I would say the Bosch has similar advantages, so if your engine does not have the pivot, you would need the adapter which bolts to three holes and presents a pivot for the Bosch Alt housing. I believe ipd supplies these but have no further info. If the pivot is present, I believe the mounting is straightforward, and wiring is per Wiring Diagram of the vehicle Bosch Alt came from.
Note: Delco and Bosch Alt housing are different so there is no cross-fit possible.

Hope that helps...Cheers
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Old Sep 10th, 2019, 01:21   #3
Derek UK
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This is an option. I think Brookhouse can also supply.
https://www.amazoncars.co.uk/part.as...n+mounting+kit

This is a bracket from IPD to fit alternator in the dynamo position. Scandcar does a similar one. Shown in the other pic. Dynamo mount can be adapted with some crafty welding but make it strong. Mount plate without the rubber bushes. None needed for an alternator.
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File Type: jpg IPD 112993 Alternator Bracket kit.jpg (137.7 KB, 33 views)
File Type: jpg Volvo_419417.jpg (49.4 KB, 32 views)
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Old Feb 17th, 2022, 19:17   #4
BLS07
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Default LHD Alternator Bracket: IPD/Brookhouse/VP etc

Quote:
Originally Posted by Derek UK View Post
This is an option. I think Brookhouse can also supply.
https://www.amazoncars.co.uk/part.as...n+mounting+kit

This is a bracket from IPD to fit alternator in the dynamo position. Scandcar does a similar one. Shown in the other pic. Dynamo mount can be adapted with some crafty welding but make it strong. Mount plate without the rubber bushes. None needed for an alternator.
Does anyone have a picture of the IPD , Brookhouse or VP Parts alternator bracket installed, please?

For a LHD B20, that is.

Just want to be sure all good before I go ahead.

...right now however;
I have found a snapped-off bolt in middle-one of the 3 x dynamo bolt holes on the side of the engine block, courtesy of the PO..

Going to tap centre with drift, drill and lefty-extract out (hopefully)
Any other tips on resolving this hidden headache would be mega appreciated.

I'd actually love to get one of Ron's brackets, but in UK figure the duty&excise add-on might be nasty nowadays..

Cheers, B.

Last edited by BLS07; Feb 17th, 2022 at 19:57.
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Old Feb 17th, 2022, 21:11   #5
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https://www.classicvolvoparts.co.uk/...e=C_Alternator
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Old Feb 17th, 2022, 21:52   #6
BLS07
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Hi Derek,

Thanks for the quick reply and link!

That's the bracket I have, from Brookhouse too.

Just finding the fitment doesn't run true to how I thought it would do.

i.e the front "pivot" bolt hole - boss on the LHD engine block would still have to be the first point of contact for the "pivot" bolt and the alternator.

(not sure why anyone wouldn't use that bossed "pivot" hole placement)

Maybe that suggests a much longer bolt is needed to run :

From front side of Alternator > through "pivot' hole boss > across top of brookhouse bracket > into the top "hex" bolt hole on said bracket.

Just doesn't appear like the front 3 Dynamo bracket holes won't line up, otherwise.

Very much overworked and under-slept, so I may be overworking and under-thinking this 'predicament'. Sorry for potential (if not probable) daftness here!!
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Old Feb 17th, 2022, 23:43   #7
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Brookhouse bracket

view #1: rear upper bolt hole ; seems out of step, bolt not long enough either

view #2: alternate direction of bracket ; no go, engine block "pivot" hole boss rules that space

view #3: the former dynamo bracket holes.
*note the darn snapped bolt that was buried behind the dynamo bracket
** centre of the 3 bracket bolt holes.
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File Type: jpg IMG_1926.jpg (130.7 KB, 36 views)
File Type: jpg IMG_1925.jpg (205.2 KB, 34 views)
File Type: jpg IMG_1928.jpg (322.9 KB, 36 views)

Last edited by BLS07; Feb 17th, 2022 at 23:57.
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Old Feb 18th, 2022, 01:19   #8
Ron Kwas
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BLS;

You don't need that bracket at all as your block already looks like it has the oe Alt pivot...see my first post! ...I'd simply install a Bosch Alt at this point...this also means you don't need to deal with the broken off bolt...

Cheers
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Old Feb 18th, 2022, 01:36   #9
BLS07
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Heya Ron!

Thanks for the clarifying advice, really appreciated.

Must admit it did occur to me, but then I just heard all the calls for brackets I'd read previously calling that thought into doubt.

One thing I did also notice though;
The OE Alt. Pivot on my engine block, has been sheared at the front face at some stage in its previous living.

Pic attached.
view # 4 : Alt Pivot bolt hole/point on engine block; sheared front face

What do you think would be an optimal solution to this as it means not a flat surface for the pivot point on the Alternator fixing point?

It impacts pulley alignment, currently.

Dare I say it; filing to ensure flat level front-face of Alt.Pivot boss?
(presumably Alternator fixing point needs to be flush with Al.Pivot boss to avoid vibration and such)
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Last edited by BLS07; Feb 18th, 2022 at 01:42.
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Old Feb 18th, 2022, 12:15   #10
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BLS;

I did notice the abnormality of pivot in view #3, and now #4...so both mounting options have issues complicating matters...but all is not lost!...I do have some ideas for solutions, nonetheleast of which would be abandoning the manifold side entirely and relocating the Alt to the Dist side with the typical RHD bracket, but before suggesting that seriously, please first post a pic of the front surface of the pivot, so I can better see the condition there...
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