LS400 Ideas on how to tighten Crank Pulley....
#1
Driver School Candidate
Thread Starter
LS400 Ideas on how to tighten Crank Pulley....
So I've been to Autozone O'Reilly's, etc and I have yet to be able to find a tool to help install the crankshaft pulley.
The bolts that are used to thread into the block are the wrong size.
So I went to a hardware store in hopes to find a bolt to make my own tool to tighten the CS pulley. I did wind up finding a bolt with the right diameter and thread pitch but unfortunately it wont thread it.
Upon inspection I see the original bolt that holds the CS in place has a drop right before the threading begins that allows it to sit in the hole before turning to thread.
The bolt that I bought does not have that drop, and it was suggested to me to take the new bolt I bought to sand/grind the end down to create that drop so that it will thread in.
Aside from doing that, are there any other suggestions in tightening the CS down?
The last time I did work on this car, I tightened it by dropping the oil pan and jamming the oil galleys with a rubber mallet while tightening it, which was a pain in the ***.
Please help, thank you
The bolts that are used to thread into the block are the wrong size.
So I went to a hardware store in hopes to find a bolt to make my own tool to tighten the CS pulley. I did wind up finding a bolt with the right diameter and thread pitch but unfortunately it wont thread it.
Upon inspection I see the original bolt that holds the CS in place has a drop right before the threading begins that allows it to sit in the hole before turning to thread.
The bolt that I bought does not have that drop, and it was suggested to me to take the new bolt I bought to sand/grind the end down to create that drop so that it will thread in.
Aside from doing that, are there any other suggestions in tightening the CS down?
The last time I did work on this car, I tightened it by dropping the oil pan and jamming the oil galleys with a rubber mallet while tightening it, which was a pain in the ***.
Please help, thank you
Last edited by KazzyEman; 07-27-15 at 07:09 PM. Reason: problem solved
#4
What's the problem?
Can't tell if your problem is keeping the crank from turning, or if you are trying to install a new damper pulley bolt.
To keep the crank from turning, take the small inspection plate off where the engine meets the transmission bell housing. Look for a way to jam a very large screwdriver through the flex plate that will prevent the crank from turning in whatever direction you need to either tighten /loosen the crank bolt. There will be a lot of force on the screwdriver shafts, so use the biggest one you can fit in there. Don't forget to remove it after you are done!
S o I've been to Autozone O'Reilly's, etc and I have yet to be able to find a tool to help install the crankshaft pulley.
The bolts that are used to thread into the block are the wrong size.
So I went to a hardware store in hopes to find a bolt to make my own tool to tighten the CS pulley. I did wind up finding a bolt with the right diameter and thread pitch but unfortunately it wont thread it.
Upon inspection I see the original bolt that holds the CS in place has a drop right before the threading begins that allows it to sit in the hole before turning to thread.
The bolt that I bought does not have that drop, and it was suggested to me to take the new bolt I bought to sand/grind the end down to create that drop so that it will thread in.
Aside from doing that, are there any other suggestions in tightening the CS down?
The last time I did work on this car, I tightened it by dropping the oil pan and jamming the oil galleys with a rubber mallet while tightening it, which was a pain in the ***.
Please help, thank you[/QUOTE]
To keep the crank from turning, take the small inspection plate off where the engine meets the transmission bell housing. Look for a way to jam a very large screwdriver through the flex plate that will prevent the crank from turning in whatever direction you need to either tighten /loosen the crank bolt. There will be a lot of force on the screwdriver shafts, so use the biggest one you can fit in there. Don't forget to remove it after you are done!
S o I've been to Autozone O'Reilly's, etc and I have yet to be able to find a tool to help install the crankshaft pulley.
The bolts that are used to thread into the block are the wrong size.
So I went to a hardware store in hopes to find a bolt to make my own tool to tighten the CS pulley. I did wind up finding a bolt with the right diameter and thread pitch but unfortunately it wont thread it.
Upon inspection I see the original bolt that holds the CS in place has a drop right before the threading begins that allows it to sit in the hole before turning to thread.
The bolt that I bought does not have that drop, and it was suggested to me to take the new bolt I bought to sand/grind the end down to create that drop so that it will thread in.
Aside from doing that, are there any other suggestions in tightening the CS down?
The last time I did work on this car, I tightened it by dropping the oil pan and jamming the oil galleys with a rubber mallet while tightening it, which was a pain in the ***.
Please help, thank you[/QUOTE]
#5
Lexus Test Driver
iTrader: (1)
Here's a link to how fellow member randal accompished it.
https://www.flickr.com/photos/landar...n/photostream/
https://www.flickr.com/photos/landar...n/photostream/
#6
Driver School Candidate
Thread Starter
thank you for your help everyone.... I wound up finding a spot to get a bolt that perfectly matches the CS pulley bolt.
For anyone else's future reference, the bolt measurement is 18mm X 1.5 X (whatever length you need, i went with 100 mm)
So the bolt I bought was long enough, put a nut on it, used a 27mm socket to hold the bolt, and a 1' 1/16th" wrench to turn the nut against some washers. it's not an accurate torque, as I'd like it to be, but i did my best.
thanks again
For anyone else's future reference, the bolt measurement is 18mm X 1.5 X (whatever length you need, i went with 100 mm)
So the bolt I bought was long enough, put a nut on it, used a 27mm socket to hold the bolt, and a 1' 1/16th" wrench to turn the nut against some washers. it's not an accurate torque, as I'd like it to be, but i did my best.
thanks again
Trending Topics
#8
Here's a trick i learned at the Lexus dealer i worked at:
Get one of these larger chain wrenches, cut up an old serpentine belt, wrap the belt around the pulley to keep it from getting marred, and then use the chain wrench:
It is surprising how much of a bite they get on it, and it wont damage anything either... plus, you can use it for other pulleys as well.
Get one of these larger chain wrenches, cut up an old serpentine belt, wrap the belt around the pulley to keep it from getting marred, and then use the chain wrench:
It is surprising how much of a bite they get on it, and it wont damage anything either... plus, you can use it for other pulleys as well.
#9
Driver School Candidate
Thread Starter
PROBLEM SOLVED
I live in Long Beach and went to Brown Bolt & Nut
Address: 15523 Minnesota Ave, Paramount, CA 90723
Phone562) 531-2888
I found the exact bolt needed. It cost me $13.00.
I live in Long Beach and went to Brown Bolt & Nut
Address: 15523 Minnesota Ave, Paramount, CA 90723
Phone562) 531-2888
I found the exact bolt needed. It cost me $13.00.
#10
Easy made tool for the crank bolt.
i found a really easy way in my opinion. Tool ready in minutes when off shelf parts parts in hand. I used the two 8.5 mm holes in the pulley, 66mm appart if I remember correctly. Bought a cheap large 46 mm open wrench (12$) and drilled two 8 mm holes in it.(tough material so fresh drillbit needed).Put two 8 mm bolts in the holes sticking out 1 inch and nuts to secure them. The u shaped open wrench allowed room for the socket.
Worked lika a charm. Used a simple luggage scale to supply the correct torque. No drama and no risks.
Mikael
Worked lika a charm. Used a simple luggage scale to supply the correct torque. No drama and no risks.
Mikael
Thread
Thread Starter
Forum
Replies
Last Post
Cologne
Performance & Maintenance
8
09-28-11 11:19 PM
boredpark
LS - 1st and 2nd Gen (1990-2000)
1
09-05-10 11:29 AM