testing starter motor - very quick answer needed!!
testing starter motor - very quick answer needed!!
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Discussion

uglymug

Original Poster:

575 posts

265 months

Friday 3rd August 2007
quotequote all
HOPE TO GO TO CASTLE COOMBE TOMORROW, BUT HAVE TROUBLE WITH STARTER MOTOR. How do you bench test it ?........there are 2 M8 studs and 2 spades......
what do you connect to what without frying it ?

ed_crouch

1,169 posts

272 months

Friday 3rd August 2007
quotequote all
OK. get some jump leads and a battery. Clamp the black lead between battery neg termianl and other one on Starter casing, probably one of the mounting lugs.

Connect the red lead to the big threaded stud. stand on the motor with one foot and whack (literally, make firm and quick contact) the other end of the red lead onto the battery pos terminal. The motor should click loudly and spin up.

2 M8 studs? Hmmm... Need someone to identify which is which... Someone'll be along shortly im sure. If youre feeling lucky (punk), try one after the other. My only though is that one might be for the solenoid live, and one for the motor live.

Ed.


Edited by ed_crouch on Friday 3rd August 20:51

rev-erend

21,622 posts

314 months

Friday 3rd August 2007
quotequote all
If you go - make sure some friends are on hand to help jump start you.

tempus

674 posts

231 months

Friday 3rd August 2007
quotequote all
you still need another wire to energise the solenoid,go from pos to one spade and just touch it.tempus

adam quantrill

11,679 posts

272 months

Friday 3rd August 2007
quotequote all
Yes, and even the solenoid lead needs to be pretty thick, it takes about 20A. Best to use another jump lead, if you have one.

pwd95

8,459 posts

268 months

Friday 3rd August 2007
quotequote all
Borrow dickys tomorrow yes
I'll have it Sunday thumbup

uglymug

Original Poster:

575 posts

265 months

Sunday 5th August 2007
quotequote all
Took the starter to a local repair guy and it works fine. Not bad for an original 1983 motor ay what!!!
Said it is the battery. He said 10.5volts is no good. Anyway went to MotorWorld and the only one they had that would fit was a 38amp 330cca thingy. ( size 8.5"x5" )
In the spec book was a 65amp 630cca battery ( 6.5"x10" )which is physically too big to go into the battery enclosure.
The Unipart Samson GBA3015 battery that I have now, all writings have worn off. It used to be fine until this wet spell when I didn;t use the car for a few months.....bugger

Anybody got similar probs or a higher spec battery model......................ta like UG

tempus

674 posts

231 months

Sunday 5th August 2007
quotequote all
tempuswithout any mods. an 015 is the most you can do,it works fine if all your systems are good,i usually get about three years out of one but not expensive so no worries.tempus

dickymint

29,093 posts

288 months

Sunday 5th August 2007
quotequote all
uglymug said:
Took the starter to a local repair guy and it works fine. Not bad for an original 1983 motor ay what!!!
Said it is the battery. He said 10.5volts is no good. Anyway went to MotorWorld and the only one they had that would fit was a 38amp 330cca thingy. ( size 8.5"x5" )
In the spec book was a 65amp 630cca battery ( 6.5"x10" )which is physically too big to go into the battery enclosure.
The Unipart Samson GBA3015 battery that I have now, all writings have worn off. It used to be fine until this wet spell when I didn;t use the car for a few months.....bugger

Anybody got similar probs or a higher spec battery model......................ta like UG
Told you it wasn't the motor wink

back in 2 mins with the battery spec u need..........


U need a HB072 thumbup


Edited by dickymint on Sunday 5th August 19:22

tempus

674 posts

231 months

Monday 6th August 2007
quotequote all
Hi,I think the 072 is too big,it will not fit in mine (>11 by >7)your old one was an 015(3015)42amp hour 330A en and the sun is shining and so BFN.Tempus