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#902312 - 11/04/11 04:02 PM Lucas transmission additive  
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Merza65 Offline
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Merza65  Offline
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northborough massachusetts
After changing the pan gasket and cleaning the entire transmission from the outside, I've pin pointed the leak and I'm 99% sure its the front seal. Transmission completely dry (on the outside), the fluid's coming down between the TC and the trans. I'm assumings its the front seal? its not a constant drip nor is it pouring out but parked over a few days without driving it will accumulate to about the size of CD on the floor. Ive called a few shops and the cheapest I found was 500 to drop the trans and swap out the front seal and the TC bushing. The man at the shop said to try some Lucas trans additive if its a small leak. Anyone have any luck with this stuff?


#902314 - 11/04/11 04:26 PM Re: Lucas transmission additive [Re: Merza65]  
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Merza65 Offline
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Merza65  Offline
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northborough massachusetts
Also, Just another quick question, For those who drive the Monte's on some super cold days, how hight do you have your coolant? do you have it at the full cold mark? And is it a 50/50 mixture or straight fluid? thanks.


#902415 - 11/05/11 01:45 AM Re: Lucas transmission additive [Re: Merza65]  
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foggerSS87 Offline
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chicago Illinois
ive used it in a few vehicles to stop gasket "seepage" but yours seems to be a little more then that though, a CD size spot after a couple days is pretty big IMO. if you want to spend the $20 its worth a shot. for the coolant over flow tank, let the car sit for a few hours til the engine cools off. then fill the overflow with a 50/50 mix of anitfreeze to the top of the "cold" line.


87ss. lq4, d1sc procharger, 4l80e 3600stall, 9" 3.70 gear
#902433 - 11/05/11 04:05 AM Re: Lucas transmission additive [Re: foggerSS87]  
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Retro Offline
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Retro  Offline
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Macon,Ga.
If you plan on keeping the Car, do it right. That 'Stop Leak' snake oil softens up the hard/brittle Seals. Only problem is after a while they turn to Jelly mush, they continue getting softer over time. Argg!

If you pull the Trans, have all the external Seals/Gaskets replaced. Very cheap Kit, about $15-$20.
Example:
http://cgi.ebay.com/ebaymotors/GM-Chevy-...=item33673b5226

Also a good idea, helps prevent Seal blowout:
http://cgi.ebay.com/ebaymotors/700R4-4L6...=item4cf7245cf1

$.71 here >> http://www.makcotransmissionparts.com/74089.html
Local Trans Parts House should also have these.

Todd

#902438 - 11/05/11 04:36 AM Re: Lucas transmission additive [Re: Retro]  
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Merza65 Offline
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northborough massachusetts
I can honestly admit that i do not have the knowledge or the experience to remove the transmission myself yet. I'll get myself into deeper trouble trying. I suppose ill do the seals and bushing right but 500 is a bit steep right now. Will the transmission be fine if i just top it off ever few weeks?


#902481 - 11/05/11 05:42 PM Re: Lucas transmission additive [Re: Merza65]  
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Retro Offline
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Macon,Ga.
Yes, it will be fine. Just keep a check on the Fluid level.
If it's only leaking out the front Seal, park the car up hill if possible. The reason they leak more after sitting for a while is the Fluid in the TC/TorqueConverter gradually drains back into the Pan & raises the Fluid level.

#902692 - 11/07/11 03:40 AM Re: Lucas transmission additive [Re: Retro]  
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86ttop Offline
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suppose the nose of the converter is gouged, it'll need replacing too and what if the pump is gouged. Just pointing out some potential problems you might run across while the trans is out. You have to disassemble the front pump to replace the bushing AFAIK.


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#902749 - 11/07/11 06:20 PM Re: Lucas transmission additive [Re: 86ttop]  
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Merza65 Offline
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northborough massachusetts
Should I just upgrade the tx while it's out when I get it done? What stall should I get? It's a stock 305, maybe headers in the near future. This car is a daily driver so I don't want a rediculious tc lol


#902751 - 11/07/11 06:44 PM Re: Lucas transmission additive [Re: Merza65]  
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Retro Offline
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Macon,Ga.
The stock TC would be fine or if you want a little more Stall a
Pro Torque 12" or 10" with around 2400-2600rpm Stall.
http://www.protorque.com/store/index.php?main_page=index&cPath=6_8

How many miles does your Trans have on it?

'86ttop' is correct, you have to remove the Pump to replace the Bushing.
Very good deal on a Remanned Pump if needed:
http://www.ebay.com/itm/400241249074?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

#902757 - 11/07/11 07:52 PM Re: Lucas transmission additive [Re: Retro]  
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Merza65 Offline
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northborough massachusetts
I'm not 100% sure if it was ever rebuilt but I believe 180k on it if it's original. I know the engine was changed out for another 305 and currently has ~70k on it.


#902764 - 11/07/11 08:31 PM Re: Lucas transmission additive [Re: Merza65]  
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Tony_SS Offline
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Washington, MO
Mine is doing the same thing. I was told to check the dip stick o-ring too. But I think its the TC seal though...

I know its not the pan because it's dry for a week after I park it then I get a little spot after that.

#902777 - 11/07/11 10:37 PM Re: Lucas transmission additive [Re: Retro]  
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DOLLAR BILL Offline
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columbus ohio
Originally Posted By: Retro
If you plan on keeping the Car, do it right. That 'Stop Leak' snake oil softens up the hard/brittle Seals. Only problem is after a while they turn to Jelly mush, they continue getting softer over time. Argg!

If you pull the Trans, have all the external Seals/Gaskets replaced. Very cheap Kit, about $15-$20.
Example:
http://cgi.ebay.com/ebaymotors/GM-Chevy-...=item33673b5226

Also a good idea, helps prevent Seal blowout:
http://cgi.ebay.com/ebaymotors/700R4-4L6...=item4cf7245cf1

$.71 here >> http://www.makcotransmissionparts.com/74089.html
Local Trans Parts House should also have these.

Todd
X2


85an86 MONTE CARLO.SS- JIM
#902876 - 11/08/11 12:49 PM Re: Lucas transmission additive [Re: DOLLAR BILL]  
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Sixtoes1313 Offline
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Abingdon, Maryland
If you've got that many miles on it you might just wanna start saving for a trans rebuild. Shouldn't more than $600 to have it gone through while its out for a stock type rebuild. Id keep a stockish converter for a DD.



LsX: DO IT~ 11.32 @120mph
#902948 - 11/08/11 09:02 PM Re: Lucas transmission additive [Re: Sixtoes1313]  
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Merza65 Offline
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Merza65  Offline
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northborough massachusetts
I wonder if that'll be the case though. Only 600ish. The lowest price I got to change the seal and tc bushing was 500. Wouldn't a complete rebuild be around 1000? If that's the case I'll start saving but in the mean time can I just top it off now and then?


#903023 - 11/09/11 03:50 AM Re: Lucas transmission additive [Re: Merza65]  
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Sixtoes1313 Offline
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Yea, throw the addative in- it should atleast slow the leak. Just keep an eye on it. GO around to some local transmission shops (Also try to get some local opinions on who does good work)and get some quotes. I'd been quoted 4-700 to rebuild a trans that was already out of the car. Since you cannot remove it yourself the shop would charge you labor (shouldnt be terrible given the ease of trans removal in one of these cars)



LsX: DO IT~ 11.32 @120mph
#903025 - 11/09/11 04:03 AM Re: Lucas transmission additive [Re: Sixtoes1313]  
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MonteC Offline
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Summerville, SC
I charge about 800 - 850 for a stock rebuild on a 200 or 700. That includes a torque converter, cooler, and a one year warranty.

R&R is 350-400, that includes fluid and cooler install.

Just to give you an idea of what a fair price should be. I know prices may vary by location but take it for what its worth.

Edit to add, if someone tells me they put any kind of lucas, or dr tranny snake oil in, I add to the price. I hate that stuff and what it does to the internal parts.

Last edited by MonteC; 11/09/11 04:04 AM.


SMCC
Broken Car Disease
#903036 - 11/09/11 08:10 AM Re: Lucas transmission additive [Re: MonteC]  
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markiemark998 Offline
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somerville, MA
if you pulled the motor would that give you access to the seals? or do you have to drop the tranny? jw I'm pulling my engine

Last edited by markiemark998; 11/09/11 11:36 AM.
#903071 - 11/09/11 06:12 PM Re: Lucas transmission additive [Re: markiemark998]  
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Merza65 Offline
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northborough massachusetts
Alright, looks like I'm just gonna top it off for now and save for a complete rebuild. The long term goal is to get a 350 up front anyways and a high mileage 200-4r isnt my best bet. The reason id like to keep the 200 is for the over drive. does the 700r4 have an overdrive? Ive seen a couple for around $2000 on craigs list.


Pulling out the motor is probably way more of a hassle then dropping the trans. If you have the car up on a lift or on stands, best and easiest bet is to drop the transmission. If you have no way of getting the car up about 2 feet off the ground, pulling the motor might be the only way youll have to do it. Unless you just get it done.


#903078 - 11/09/11 08:18 PM Re: Lucas transmission additive [Re: Merza65]  
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86_SS Offline
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League City, TX
Yes, pulling the motor will give you access to the front seal.

And yes, a 700R4 has an overdrive. $2000? Is it rebuilt? I just bought one for $150 on Craigslist. That included a stock torque converter


86 Monte SS - blackside - sbc350, 700-R4, 7.5" open dif - blazer spindle/brake upgrade w/ stainless braided lines, tubular upper a-arms, 1" front lowering springs, jeep steering shaft, electric fans, serpentine swap, 4" fiberglass hood
#903108 - 11/10/11 12:18 AM Re: Lucas transmission additive [Re: 86_SS]  
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Merza65 Offline
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you bought a 700r4 for 150???? wow man. Good find.


#903129 - 11/10/11 03:39 AM Re: Lucas transmission additive [Re: Merza65]  
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Retro Offline
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Macon,Ga.
Stay away from the 700R4's unless you want to do more Mods, like shorter DriveShaft & Crossmember.
Check with either of these Builders for a 2004R:
David Husek >> http://www.turbobuickperformance.com/
Chris Kokkonis >> http://www.ckperformance.com/resources/GM2004RCATALOG.html
Both are close to you.


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