Rat Rod (running)

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Old and Slow
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Rat Rod (really broken)

Post by Old and Slow » Tue Sep 15, 2020 10:16 pm

IIRC there's been issues with dodgy dizzy caps - if you have a new one it could be a problem, but it wouldn't be just one bank misfiring.
The oily plugs might suggest a head gasket problem - water leak - is the radiator cap blowing at all? A compression test might help check for leaks.


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philhoward
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Rat Rod (really broken)

Post by philhoward » Wed Sep 16, 2020 5:32 am

A loose/failing inlet manifold gasket would also give similar symptoms as it’s trying to keep air, water and oil apart.


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Gillsfan
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Rat Rod (really broken)

Post by Gillsfan » Wed Sep 16, 2020 9:35 pm

Right, I've been out carrying out some investigation aided and abetted by Richie.

First, we pressured the cooling system and identified a couple of leaks/weeps, no rectified.

I put new spark plugs in (I happen to have a set) and WD40 (well 3 in 1) sprayed around the inlet manifold. No change to engine note.

Inlet manifold bolts check torqued 3 of the took 1/4 if a turn by nothing significant. None of them over-torqued.

Carb off and checked over, no issues. Just for you Phil the gauze is in as good condition as the day I made them :wink:
20200916_182354.jpg
20200916_182354.jpg (246.53 KiB) Viewed 504 times
Inlet manifold off and I think we have a winner. In our opinion there is evidence of oil/water getting where it shouldn't and the passenger side looked worse than the drivers.
20200916_191108.jpg
20200916_191108.jpg (365.61 KiB) Viewed 504 times
20200916_191252.jpg
20200916_191252.jpg (344.34 KiB) Viewed 504 times
New gaskets already ordered from burton power, oil flush and change will be done as we spilt some water into the engine when we lifted the manifold off.
Last edited by Gillsfan on Wed Sep 16, 2020 10:47 pm, edited 2 times in total.


Steve

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1969 SE 5 Manual O/D Rat Rod
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philhoward
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Rat Rod (really broken)

Post by philhoward » Wed Sep 16, 2020 9:40 pm

Cheers for that Steve - and glad another of my hunches was closer (manifold gasket).


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Rat Rod (really broken)

Post by AJL Electronics » Wed Sep 16, 2020 9:51 pm

Oil isn't much use for hunting gasket failure. The method behind it is to supply the engine with extra fuel that it wasn't expecting via the air leakage point. For that reason it has to be volatile, so Water Dispersant or thin oil is not much use as it is difficult to ignite. I use brake cleaner, but propane from a blowlamp would work too. The key is to only direct it at the suspect areas and not allow it to be sucked in through the air cleaner route. The engine note will change when it starts to ingest the extra fuel.


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Rat Rod (really broken)

Post by Will Yarrow » Thu Sep 17, 2020 1:31 am

Wd40 has allways worked for me, I don't mind useing brake cleaner or contact cleaner, even carb cleaner at a push, but I'm reluctant to recomend it, just in case.



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Rat Rod (really broken)

Post by Coupe Racing » Thu Sep 17, 2020 4:21 am

philhoward wrote:
Wed Sep 16, 2020 9:40 pm
Cheers for that Steve - and glad another of my hunches was closer (manifold gasket).
Mine too


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Rat Rod (really broken)

Post by willholderogri » Thu Sep 17, 2020 7:44 am

Gillsfan wrote:
Wed Sep 16, 2020 9:35 pm
Right, I've been out carrying out some investigation aided and abetted by Richie.

First, we pressured the cooling system and identified a couple of leaks/weeps, no rectified.

I put new spark plugs in (I happen to have a set) and WD40 (well 3 in 1) sprayed around the inlet manifold. No change to engine note.

Inlet manifold bolts check torqued 3 of the took 1/4 if a turn by nothing significant. None of them over-torqued.

Carb off and checked over, no issues. Just for you Phil the gauze is in as good condition as the day I made them :wink:

20200916_182354.jpg

Inlet manifold off and I think we have a winner. In our opinion there is evidence of oil/water getting where it shouldn't and the passenger side looked worse than the drivers.

20200916_191108.jpg

20200916_191252.jpg

New gaskets already ordered from burton power, oil flush and change will be done as we spilt some water into the engine when we lifted the manifold off.
what did you pressurise the system with and what pressure did you use as a max ? need to check mine


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Old and Slow
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Rat Rod (really broken)

Post by Old and Slow » Thu Sep 17, 2020 8:59 am

Good to hear you are on the right path; well done - fingers crossed it solves all the issues.


Philip Needham
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Gillsfan
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Rat Rod (really broken)

Post by Gillsfan » Thu Sep 17, 2020 12:02 pm

Thank you all for the advice and encouragement. My trip at the weekend has been cancelled, so I'm hoping to get her running again over the weekend. I have inlet manifold, rocker cover ,thermostat housing, carb gasket and carb top lid gaskets on order as well as antifreeze and coolant flush. new oil and engine flush are reserved for collection. Have i forgotten anything?


Steve

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1969 SE 5 Manual O/D Rat Rod
RSSOC Jaffa cakes in a minute champion

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Gillsfan
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Rat Rod (really broken)

Post by Gillsfan » Thu Sep 17, 2020 12:05 pm

willholderogri wrote:
Thu Sep 17, 2020 7:44 am
Gillsfan wrote:
Wed Sep 16, 2020 9:35 pm
Right, I've been out carrying out some investigation aided and abetted by Richie.

First, we pressured the cooling system and identified a couple of leaks/weeps, no rectified.

I put new spark plugs in (I happen to have a set) and WD40 (well 3 in 1) sprayed around the inlet manifold. No change to engine note.

Inlet manifold bolts check torqued 3 of the took 1/4 if a turn by nothing significant. None of them over-torqued.

Carb off and checked over, no issues. Just for you Phil the gauze is in as good condition as the day I made them :wink:

20200916_182354.jpg

Inlet manifold off and I think we have a winner. In our opinion there is evidence of oil/water getting where it shouldn't and the passenger side looked worse than the drivers.

20200916_191108.jpg

20200916_191252.jpg

New gaskets already ordered from burton power, oil flush and change will be done as we spilt some water into the engine when we lifted the manifold off.
what did you pressurise the system with and what pressure did you use as a max ? need to check mine
I use one of these, I managed to pick one up cheap a few years ago. i can't remember what pressure we tested to, I was expecting a leak so when we got on after a few pumps i was happy and fixed the leak.
pressure test.jpg
pressure test.jpg (63.92 KiB) Viewed 340 times


Steve

What if the Hokey Cokey is what its all about

1969 SE 5 Manual O/D Rat Rod
RSSOC Jaffa cakes in a minute champion

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scimjim
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Rat Rod (really broken)

Post by scimjim » Thu Sep 17, 2020 12:11 pm

Gillsfan wrote:
Thu Sep 17, 2020 12:02 pm
Thank you all for the advice and encouragement. My trip at the weekend has been cancelled, so I'm hoping to get her running again over the weekend. I have inlet manifold, rocker cover ,thermostat housing, carb gasket and carb top lid gaskets on order as well as antifreeze and coolant flush. new oil and engine flush are reserved for collection. Have i forgotten anything?
hylomar and oil filter.


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Gillsfan
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Rat Rod (really broken)

Post by Gillsfan » Thu Sep 17, 2020 12:30 pm

scimjim wrote:
Thu Sep 17, 2020 12:11 pm
Gillsfan wrote:
Thu Sep 17, 2020 12:02 pm
Thank you all for the advice and encouragement. My trip at the weekend has been cancelled, so I'm hoping to get her running again over the weekend. I have inlet manifold, rocker cover ,thermostat housing, carb gasket and carb top lid gaskets on order as well as antifreeze and coolant flush. new oil and engine flush are reserved for collection. Have i forgotten anything?
hylomar and oil filter.
Roger, ordering some now. where am i putting the Hylomar? I 'm assuming inlet manifold gasket but where exactly?


Steve

What if the Hokey Cokey is what its all about

1969 SE 5 Manual O/D Rat Rod
RSSOC Jaffa cakes in a minute champion

gtcse8
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Rat Rod (really broken)

Post by gtcse8 » Thu Sep 17, 2020 12:33 pm

In the bottom of the Valley, where the Cork inserts are fitted.
If the gasket is just a plain on, rather than having a screen printed Goo round the openings it won`t harm it to just put a bit round them.


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scimjim
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Rat Rod (really broken)

Post by scimjim » Thu Sep 17, 2020 12:40 pm

I use hylomar on one side (the rocker cover side) of the rocker cover gaskets to keep them in place as you fit. Both sides of stat gasket and as Mark says, the cork bit front and rear of the inlet manifold and around the waterways. Put it on as thin as possible and allow to dry before fitting.


Jim King

SECURE DRY STORAGE FOR YOUR SCIMITAR

Current: SE5 (8Ball), 1400 1600 1800 Zetec ST170 powered SS1 (G97), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre, TI SS1 (snotty), 1600 SS1 (C686CCR).
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), 1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS

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